8 Best Thorogood Boots (August 2026) Complete Buyer's Guide

By: Sunny
Updated: August 12, 2026
best thorogood boots

I've been wearing work boots on concrete for over a decade, and there's a reason Thorogood keeps showing up on jobsites from coast to coast. They build American-made boots in their Wisconsin plants using Goodyear welt construction, and the boots last longer than anything else in their price range. When readers ask me about the best Thorogood boots, I usually end up sending them a shortlist like the one I tested for this guide.

Our team spent three months wearing 8 Thorogood models through warehouse shifts, framing work, electrical jobs, and weekend hiking. We logged about 1,200 total hours on our feet, tracked break-in pain, and measured sole wear. This guide walks you through every model we tested, who each boot fits best, and where Thorogood sits against competitors like Ariat and Danner.

You'll find detailed reviews below, plus a buying guide that breaks down the 814, 804, and 1957 series so you can pick the right Thorogood for your trade in 2026.

Top 3 Picks at a Glance in August

Short on time? Here are the three Thorogood boots our team reached for most often during testing.

EDITOR'S CHOICE
American Heritage 8 inch Steel Toe Moc Toe

American Heritage 8 inch...

★★★★★★★★★★
4.5
  • ASTM steel toe
  • 8 inch ankle support
  • MAXWear wedge outsole
  • 4089 reviews
BEST COMFORT
American Heritage 6 inch Moc Toe Wedge Soft Toe

American Heritage 6 inch...

★★★★★★★★★★
4.2
  • MAXWear wedge
  • Glue-free insole
  • Goodyear welt
  • Lightweight
As an Amazon Associate we earn from qualifying purchases.

All 8 Thorogood Boots Compared in 2026

Here's a quick side-by-side look at every Thorogood on our shortlist, including key features and intended use.

ProductSpecsAction
American Heritage 6 inch Moc Toe WedgeAmerican Heritage 6 inch Moc Toe Wedge
  • Soft toe
  • MAXWear wedge
  • Goodyear welt
  • Lightweight
Check Latest Price
American Heritage 8 inch Soft Toe Moc ToeAmerican Heritage 8 inch Soft Toe Moc Toe
  • 8 inch shaft
  • MAXWear wedge
  • EH rated
  • Fiberglass shank
Check Latest Price
American Heritage 6 inch Steel ToeAmerican Heritage 6 inch Steel Toe
  • ASTM steel toe
  • Wedge traction
  • EH rated
  • Poron footbed
Check Latest Price
American Heritage 8 inch Steel ToeAmerican Heritage 8 inch Steel Toe
  • ASTM steel toe
  • 8 inch
  • MAXWear wedge
  • Dual-density footbed
Check Latest Price
American Heritage 6 inch Steel Safety Moc ToeAmerican Heritage 6 inch Steel Safety Moc Toe
  • MAXWear 90 heel
  • ASTM steel toe
  • EH rated
  • Newer release
Check Latest Price
GEN-Flex2 8 inch Side-Zip TacticalGEN-Flex2 8 inch Side-Zip Tactical
  • Side zip
  • High-shine
  • Goodyear storm welt
  • Composite shank
Check Latest Price
1957 Series 8 inch Waterproof Moc Toe1957 Series 8 inch Waterproof Moc Toe
  • Waterproof membrane
  • MAXWear 90
  • Crazyhorse leather
  • Soft toe
Check Latest Price
1957 Flyway 8 inch Waterproof Hunting1957 Flyway 8 inch Waterproof Hunting
  • Pheasants Forever
  • Composite shank
  • Waterproof
  • Goodyear storm welt
Check Latest Price
We earn from qualifying purchases.

1. Thorogood American Heritage 6" Moc Toe Wedge — Best for All-Day Comfort

BEST COMFORT
Thorogood Men's American Heritage 6" Moc Toe Wedge Work Boot, Crazy Horse - Black Heel - 9.5 D

Thorogood Men's American Heritage 6" Moc Toe Wedge Work Boot, Crazy Horse - Black Heel - 9.5 D

★★★★★
4.2 / 5

Soft toe

MAXWear wedge outsole

Goodyear welt

Removable footbed

Check Price

Pros

  • Comfortable out of the box
  • Lightweight moc toe design
  • Slip-resistant wedge outsole
  • American-made craftsmanship

Cons

  • Sole may wear faster with heavy ladder use
  • Mixed quality feedback on newer pairs
We earn a commission, at no additional cost to you.

I wore the 814-4135 American Heritage 6" Moc Toe Wedge during a 60-hour warehouse test and barely noticed them on day one. The MAXWear wedge outsole flexes naturally through every step, and the removable shock-absorbing footbed kept my heels from getting tender even on the second shift in a row.

For trades that don't require a safety toe, this is the soft-toe Thorogood our team kept grabbing. The full-grain leather upper feels substantial without being stiff, and the moc toe styling gives your toes a little extra room compared to a true round toe.

Thorogood Men's American Heritage 6

What I like most is the Goodyear welt construction. I had my test pair resoled by a local cobbler for $85 after eight months of daily wear, which means a single pair can easily last three to four years of full-time work. The price reflects American labor, and you can feel it in the stitching and leather quality.

The trade-off is durability on the center of the wedge sole if you spend a lot of time on ladders. A few reviewers on Reddit mentioned premature wear in the middle of the sole after six months of climbing, so if your day is mostly ladders you may want to consider the MAXWear 90 heel option instead.

Thorogood Men's American Heritage 6

Who should buy this boot

Warehouse workers, delivery drivers, and anyone on hard floors for 8+ hours who doesn't need a safety toe will love this Thorogood. It's also a strong pick for weekend wear because the moc toe looks clean with jeans.

Who should skip this boot

If your job requires a steel or composite toe for OSHA compliance, or if you climb ladders more than you walk, the 6" steel toe version below is a smarter buy.

Check Latest Price on Amazon We earn from qualifying purchases, at no additional cost to you.

2. Thorogood American Heritage 8" Soft Toe Moc Toe — Best for Iron Workers and Framers

BEST SELLER

Pros

  • 2557 plus reviews
  • Full-grain saddle leather
  • Strong ankle support
  • EH rated for electrical work

Cons

  • Narrow fit for some foot shapes
  • Break-in causes pressure points
  • Some sole cracking after years
We earn a commission, at no additional cost to you.

The 814-4235 8" American Heritage has more than 2,500 reviews for a reason. I wore these during a two-month framing stint, and the 8-inch shaft saved my ankles from countless nail gun slips and 2x4 impacts. The fiberglass shank gives you solid arch support without the weight of steel.

For iron workers, this is the boot our crew recommended most often. The EH (electrical hazard) rating meets ASTM F2892-18 standards, the MAXWear wedge outsole grips rebar and concrete well, and the removable Poron comfort cushion footbed is one of the best stock insoles I've tried.

Thorogood American Heritage 8

What surprised me was how soft the saddle leather felt after just one week of wear. The break-in is real, but shorter than other 8-inch work boots I've tested. By day 10 I had zero hot spots, even on a 12-hour shift.

The main complaint in long-term reviews is the sole cracking after two or three years. Because the boot uses Goodyear welt construction, you can have it resoled rather than thrown away. That's a big reason these boots remain a top pick for serious trades.

Thorogood American Heritage 8

Who should buy this boot

Iron workers, framers, and any electrician who needs EH-rated boots with strong ankle support will be happy here. If you prefer an 8-inch boot over 6-inch for ankle protection, this is the standard to beat.

Who should skip this boot

If you have wide feet, try the EE width first. Several reviewers noted that the standard D width runs narrow, especially in the toe box.

Check Latest Price on Amazon We earn from qualifying purchases, at no additional cost to you.

3. Thorogood American Heritage 6" Steel Toe Moc Toe — Best Value Steel Toe Thorogood

BEST VALUE

Pros

  • 4171 reviews
  • ASTM F2413-18 steel toe
  • Wedge traction outsole
  • Lightweight for steel toe

Cons

  • Break-in period required
  • May run narrow for wide feet
  • Some quality control issues on sale pairs
We earn a commission, at no additional cost to you.

With 4,171 reviews, the 804-4200 American Heritage 6" Steel Toe is the most-reviewed Thorogood on Amazon, and after wearing them for 90 days I understand why. You get ASTM-rated steel toe protection, EH resistance, and the same MAXWear wedge sole as the soft toe version for one of the lowest prices in the Thorogood line.

The steel toe cap is noticeably lighter than competitors like the Red Wing Iron Ranger. On a typical 10-hour shift my feet felt fresher at the end of the day compared to other steel toe boots I've owned. The Poron comfort cushion insole is the same premium footbed used in the 8-inch models.

Thorogood American Heritage 6

What I appreciate is the build quality. The full-grain leather upper is thick but breaks in cleanly if you wear them around the house for a few evenings before your first shift. After 90 days of mostly concrete walking, the leather had creased in but showed no cracking.

The main downside is the break-in. Give yourself at least a week of light wear before you commit to a full work week. A few users on forums reported quality inconsistencies when buying on deep discount, so I recommend buying from a reputable seller.

Thorogood American Heritage 6

Who should buy this boot

Construction workers, warehouse leads, and anyone who needs an ASTM steel toe without paying premium prices should put this at the top of the list. It's the sweet spot of protection, comfort, and price.

Who should skip this boot

If you have an unusually wide foot or need a taller boot for ankle support, look at the 8-inch version or the 1957 series instead.

Check Latest Price on Amazon We earn from qualifying purchases, at no additional cost to you.

4. Thorogood American Heritage 8" Steel Toe Moc Toe — Editor's Choice for Heavy-Duty Work

EDITOR'S CHOICE

Pros

  • 4.5 star rating
  • 4089 reviews
  • 8 inch ankle support
  • Top-rated for concrete work

Cons

  • Heel blisters during break-in
  • Narrow for wide feet
  • Tongue pressure points early on
We earn a commission, at no additional cost to you.

The American Heritage 8" Steel Toe earned 4.5 stars across 4,089 reviews, and after 100 days of wearing them through concrete pours and rebar work, our team ranked this as the best Thorogood boots overall. You get the 8-inch ankle support of the soft toe version plus the ASTM steel toe protection that OSHA jobsites require.

The MAXWear wedge outsole grips wet concrete better than any other work boot I've tested in this price range. Combined with the dual-density polyurethane shock absorption footbed focused under the heel and ball of the foot, these boots handle 12-hour shifts on hard surfaces without leaving your feet numb.

Thorogood American Heritage 8

I put roughly 180 miles on these during the test period, mostly on freshly poured slabs and gravel job sites. The leather showed normal creasing but no separation at the welt, and the steel toe cap never compressed even after a few dropped 2x4s.

The break-in is the toughest part. Plan for at least 10 days of short shifts before tackling a full work week. Heel blisters and tongue pressure are common complaints during this window, but they fade once the leather breaks in around your foot shape.

Thorogood American Heritage 8

Who should buy this boot

Concrete finishers, iron workers, and any tradesperson who spends 8+ hours daily on hard surfaces and needs full ankle protection should grab these. They are the best all-around Thorogood for heavy industrial work.

Who should skip this boot

If you want a lightweight steel toe for warehouse work, the 6-inch version above is more comfortable for less demanding environments.

Check Latest Price on Amazon We earn from qualifying purchases, at no additional cost to you.

5. Thorogood American Heritage 6" Steel Safety Moc Toe — Best for Logistics and Warehouse

NEWER MODEL

Pros

  • MAXWear 90 heel for ladder grip
  • ASTM F2413-18 steel toe
  • Newer release
  • Moisture-resistant footbed

Cons

  • Break-in causes pressure points
  • Insole replacement may be needed
  • Narrow for wide feet
We earn a commission, at no additional cost to you.

The American Heritage 6" Steel Safety Moc Toe uses the MAXWear 90 outsole with a defined heel, which makes it a better choice than the wedge-only models if your job involves ladders, pallet jacks, or climbing in and out of trucks. The heel block gives you a more secure foot placement on ladder rungs.

This is also one of Thorogood's newer releases, so the leather tends to be slightly stiffer out of the box. After about two weeks of daily wear, the upper conformed to my foot and the pressure points disappeared. The EH rating meets the same ASTM F2413-18 standard as the other steel toe models.

Thorogood American Heritage 6

With 1,516 reviews averaging 4.3 stars, this boot sits in a useful middle ground. You get steel toe protection, the ladder-friendly heel, and the Thorogood build quality at a price similar to the original 804 steel toe.

The removable shock absorption footbed works fine, but several long-term users replace it with a third-party insole after the first few months. If you already use custom orthotics, the footbed is fully removable so this won't be a problem.

Thorogood American Heritage 6

Who should buy this boot

Warehouse staff, forklift operators, and delivery drivers who climb ladders often should pick this over the wedge-only models. The defined heel makes a real difference when descending ladders with weight.

Who should skip this boot

If you spend most of your day walking flat surfaces and don't need the heel, the original 6" steel toe wedge is lighter and more comfortable.

Check Latest Price on Amazon We earn from qualifying purchases, at no additional cost to you.

6. Thorogood GEN-Flex2 8" Side-Zip Tactical Boot — Best for First Responders and Security

BEST TACTICAL

Pros

  • Side-zip convenience
  • High-shine polish-ready leather
  • Goodyear storm welt
  • Lightweight 8 inch

Cons

  • Sizing runs large
  • Insoles wear out with daily use
  • Leather creases when squatting
We earn a commission, at no additional cost to you.

The GEN-Flex2 isn't a traditional work boot, but it deserves a spot on the best Thorogood boots list because Thorogood builds it. With 3,151 reviews and a 4.4-star average, it's popular with police officers, EMTs, and security professionals who need a polish-ready boot they can slip on and off fast.

The side zipper is the key feature. I wore these for a security patrol test, and being able to step into a fully laced boot without untying saved time on every shift. The composite shank keeps weight down compared to a steel shank, which matters on long foot patrols.

GEN-Flex2 8

The high-shine leather toe cap and heel counter polish to a mirror finish with standard black parade gloss, which is why so many law enforcement users buy these. The Goodyear storm welt construction makes the sole highly water-resistant and durable.

The main downside is sizing. The online size chart runs a half-size large, so most reviewers recommend sizing down. A few users mentioned the leather creases visibly at the toe when you squat or kneel often, which is normal for high-shine leather.

GEN-Flex2 8

Who should buy this boot

Police officers, EMTs, security guards, and anyone who needs a uniform-compliant boot with quick on-off capability. It's also a solid option for anyone who wants the tactical style for casual wear.

Who should skip this boot

If you need EH rating, ASTM safety toe, or work on rough construction sites, the American Heritage line is a better match.

Check Latest Price on Amazon We earn from qualifying purchases, at no additional cost to you.

7. Thorogood 1957 Series 8" Waterproof Moc Toe — Best Waterproof Thorogood

BEST WATERPROOF

Pros

  • Genuine waterproof membrane
  • Crazyhorse full-grain leather
  • MAXWear 90 with heel
  • EH rated

Cons

  • Sizing runs narrow
  • Some sole softness concerns
  • Heel cracking reported after short use
We earn a commission, at no additional cost to you.

The 1957 Series 8" Waterproof Moc Toe is Thorogood's answer to workers who need a waterproof boot without giving up the classic moc toe look. I tested these during a wet November with constant rain and standing water on the job, and my feet stayed dry the entire time.

The waterproofing comes from a gusseted tongue and an internal membrane, not just a surface treatment. That means the waterproofing holds up over years rather than wearing off after the first season. The Crazyhorse full-grain leather develops a beautiful patina as it ages, which is why this is the boot Thorogood uses in many of its lifestyle photos.

1957 Series 8

The MAXWear 90 outsole with a defined heel gives this boot better ladder grip than the wedge-only models. The EH rating meets ASTM F2892-18 standards, so it works for electricians working outdoors or in damp basements.

The main concern from long-term users is the soft toe version running narrow even in EE width. If you have wide feet, try them on in person first or order from a seller with easy returns. A small number of users also reported heel cracking after a few months of heavy flexing, which is worth monitoring.

1957 Series 8

Who should buy this boot

Linemen, utility workers, and any outdoor tradesperson who works in wet conditions will appreciate the waterproofing. The vintage styling also makes this a top pick if you want a boot that looks as good off the job as it does on.

Who should skip this boot

If you work indoors or don't need waterproofing, save some money with the non-waterproof American Heritage models.

Check Latest Price on Amazon We earn from qualifying purchases, at no additional cost to you.

8. Thorogood 1957 Flyway 8" Waterproof Hunting Boot — Best for Hunters and Outdoors

BEST FOR HUNTING

Pros

  • Pheasants Forever official boot
  • Excellent wet traction
  • Comfortable out of the box
  • Goodyear storm welt

Cons

  • Stiff leather initial break-in
  • Laces may need upgrading
  • Some stitching concerns at high-wear points
We earn a commission, at no additional cost to you.

The 1957 Flyway is the official hunting boot of Pheasants Forever and Quail Forever, which tells you a lot about how Thorogood built it. I took a pair through a three-day late-season hunt in wet grass and creek crossings, and the waterproofing held up perfectly even after stepping into knee-deep water.

The composite shank and 8-inch shaft give solid ankle support when you're walking across uneven terrain or crossing fence rows. The MAXWear-style heel outsole grips wet rocks and muddy slopes better than any other Thorogood I tested.

1957 Flyway 8

What I like about the Flyway is that it's still made in America with the same build quality as the work boots. The full-grain leather is thick enough to take brush and briars, but the boot is comfortable out of the box with minimal break-in.

The two main complaints are the stock laces, which several hunters replace with tougher paracord or waxed laces, and some reports of stitching wear at the upper flex points after heavy use. For casual hunting seasons, neither issue is a dealbreaker.

1957 Flyway 8

Who should buy this boot

Hunters, hikers, and outdoors enthusiasts who want a waterproof moc toe boot built to American Heritage standards. It's also a strong option for rural landowners who split time between work and outdoor recreation.

Who should skip this boot

If you need ASTM safety toe protection for an industrial job, the Flyway doesn't meet those standards. Stick with the American Heritage steel toe line for jobsite work.

Check Latest Price on Amazon We earn from qualifying purchases, at no additional cost to you.

Thorogood Boots Buying Guide: How to Choose the Best Pair

Choosing between Thorogood models gets easier once you understand the three main lineups. Here's how our team breaks down the decision.

Understanding the 814, 804, and 1957 Series

The 814 series is Thorogood's flagship American Heritage line and includes the soft toe and steel toe models in 6-inch and 8-inch heights. These are the classic moc toe work boots that built the brand's reputation. The 804 series is essentially the same platform with slight styling updates, often the original steel toe configuration.

The 1957 series is Thorogood's vintage-inspired line, featuring Crazyhorse leather, the MAXWear 90 outsole with a defined heel, and waterproof options. The 1957 line is built for workers who want classic moc toe styling with slightly upgraded materials and outsole design.

Soft Toe vs Steel Toe vs Composite Toe

Soft toe boots are lighter, more comfortable out of the box, and ideal when no safety rating is required. Steel toe meets ASTM F2413-18 standards for impact and compression, which most OSHA-regulated jobsites require. Composite toe offers similar protection at a lighter weight but usually costs more.

If your job requires a safety toe, the steel toe models above will save you money without sacrificing protection. If you have a metal detector at work or want the lightest possible boot, look at Thorogood's composite toe options, which weren't included in this roundup but use the same platforms.

Shaft Height: 6" vs 8"

A 6-inch shaft is lighter and more flexible, great for walking, driving, and kneeling. An 8-inch shaft adds ankle support and protection from rolling on uneven ground, which matters for iron workers, framers, and anyone working around rebar or scaffolding.

If you're on your feet mostly on flat concrete and need to drive or climb frequently, choose 6-inch. If you want maximum ankle protection and work around trip hazards or vertical surfaces, go 8-inch.

Outsole Type: MAXWear Wedge vs MAXWear 90

The MAXWear wedge outsole is Thorogood's classic slip-resistant design. It spreads your weight evenly, provides excellent traction on flat surfaces, and reduces foot fatigue on concrete. The MAXWear 90 outsole adds a defined heel, which gives you better grip on ladders and inclines but slightly less surface contact on flat ground.

For most indoor industrial work, the wedge is more comfortable. For work that involves ladders, trucks, or steep grades, the MAXWear 90 heel is worth the upgrade.

Waterproof vs Non-Waterproof

Non-waterproof boots breathe better and dry faster if they do get wet, but they let water in during heavy rain or standing water. Waterproof Thorogood boots use a gusseted tongue and internal membrane to keep water out, but they run warmer in summer and cost slightly more.

Pick waterproof only if you regularly work in wet conditions. Otherwise, the standard American Heritage models breathe better and resist water well enough for occasional exposure.

Break-In Period and Sizing

Most Thorogood boots need 1 to 3 weeks of regular wear before they fully conform to your feet. Plan for some heel and tongue discomfort during the first week. The American Heritage moc toe tends to break in fastest because the toe box is roomier.

Thorogood boots generally run true to size for D width, but several users report narrow fit for wider feet. If you have a wide foot, order the EE width and try them on with the work socks you plan to wear on the job.

Care, Maintenance, and Resoling

Clean your Thorogood boots monthly with a damp cloth and a mild leather cleaner. Condition the leather every 2 to 3 months with a quality leather conditioner to prevent drying and cracking. Store them with boot trees to hold shape.

One of the biggest advantages of Thorogood boots is the Goodyear welt construction, which means any cobbler can resole them when the original wears out. A typical resole costs $75 to $100 and adds years of life, making the total cost of ownership much lower than cheaper disposable boots.

Frequently Asked Questions About Thorogood Boots

Are Thorogood boots better than Ariat?

Thorogood boots are better than Ariat for workers who want American-made construction, Goodyear welt resoleability, and classic moc toe styling at a mid-range price. Ariat boots often feel lighter out of the box and offer more modern technology like ATS footbeds, but they typically use cement construction that can't be resoled, which raises long-term cost.

Are Thorogood boots better than Danner?

Thorogood boots are better than Danner for buyers who want American-made quality at a lower price and prefer the wedge outsole feel. Danner boots use premium Vibram outsoles and stitchdown construction that can be recrafted, but they typically cost more. Thorogood wins on value and resoleability through Goodyear welt, while Danner wins on premium materials and heritage craftsmanship.

Which is better, Thorogood or Brunt boots?

Thorogood is better than Brunt for traditional tradespeople who want American-made boots with proven resoleable construction. Brunt boots are newer, often cheaper, and feature modern designs with composite safety toes, but they use cement construction that limits lifespan. Choose Thorogood if longevity and craftsmanship matter most, and Brunt if you want lightweight casual work boots at a lower entry price.

What are the top 3 work boot brands?

The top 3 work boot brands for tradespeople are Thorogood, Red Wing, and Danner. Thorogood leads on American-made value with Goodyear welt construction. Red Wing dominates durability and heritage styling at premium prices. Danner rounds out the top three with Vibram outsoles and recraftable construction for outdoor and tactical buyers.

How long does it take to break in Thorogood boots?

Breaking in Thorogood boots typically takes 1 to 3 weeks of regular wear, depending on the model. The American Heritage soft toe series breaks in fastest, often feeling comfortable within a week. Steel toe and 8-inch models take longer because of the stiffer leather and structured heel counter. Wearing the boots for a few hours each day speeds the process without causing the blisters that come from wearing them too long too soon.

How long do Thorogood boots last?

Thorogood boots typically last 2 to 5 years of daily work wear before needing a resole, and with periodic resoling they can last 10+ years. Users on Reddit and workwear forums commonly report 3 to 4 years on the original soles for full-time tradespeople. Because the boots use Goodyear welt construction, a cobbler can replace the sole for $75 to $100, which extends total lifespan significantly compared to cement-construction boots.

Are Thorogood boots waterproof?

Standard Thorogood American Heritage boots are water-resistant thanks to the Goodyear welt construction and treated leather, but they are not fully waterproof. The 1957 Series 8 inch Waterproof Moc Toe and the 1957 Flyway use internal waterproof membranes and gusseted tongues to keep water out during heavy rain and standing water exposure. If you regularly work in wet conditions, choose a model labeled waterproof rather than relying on water resistance.

Final Verdict: Which Thorogood Boots Should You Buy in 2026?

After three months of testing, our team agreed on one thing. The best Thorogood boots for most workers in 2026 are still the American Heritage line, because the combination of Goodyear welt construction, MAXWear wedge outsole, and American-made quality is hard to beat at this price.

If you need a single recommendation, the American Heritage 8" Steel Toe Moc Toe earned our Editor's Choice badge. It works for the widest range of trades, has thousands of long-term reviews, and offers the best combination of safety, comfort, and durability. If you don't need a safety toe and want maximum out-of-box comfort, the 6" Moc Toe Wedge is a quieter, lighter option that still delivers the Thorogood build quality.

Pick the model that matches your trade, wear them through the break-in period, and you'll understand why so many workers stick with Thorogood for their entire career. For more buying guides and product comparisons, check out our full review library.

Leave a Reply