Feather Craft · Gear Guide

Fly Fishing Waders:
GORE-TEX vs Toray

The most important part of your fly fishing waders is the one part you never see. Here is how we think about the membrane that decides everything.

[ ROBERT GARRETT . GALLATIN RIVER, MONTANA ]

When anglers talk to us about fly fishing waders, the conversation almost always arrives at the same fork in the river: GORE-TEX or Toray? It is one of the most important decisions in modern wader design, and one of the most misunderstood. Beneath every premium pair of fly fishing waders sits a hidden system that quietly governs breathability, waterproofing, durability, and comfort. That system is the membrane, and the two technologies that dominate fly fishing waders today are GORE-TEX, the long-established benchmark, and Toray, the modern challenger best known for its Dermizax and similar polyurethane membranes. Once you understand how each one works, and how each behaves once you are standing in cold current, the way you choose fly fishing waders changes for good.

How Fly Fishing Wader Fabrics Actually Work

Fly fishing waders are not a single material. They are a layered sandwich engineered to do two opposing jobs at once: keep external water out while letting your own sweat escape. That construction comes down to three parts:

• Outer face fabric, which handles abrasion and takes the beating from rock, brush, and gravel.
• The waterproof-breathable membrane, the core of the whole system and the part this guide is really about.
• Inner liner, which adds comfort and protects the membrane from the inside.

The whole challenge is balance. Push too far toward waterproofing and you trap sweat against your skin. Push too far toward breathability and you risk letting the river in. GORE-TEX and Toray solve that balancing act in fundamentally different ways, and that single difference explains almost everything anglers notice once they are on the water.

A Short History of Two Materials

GORE-TEX was born from a discovery in 1969. Working in the family business his father Bill Gore had founded in Newark, Delaware in 1958, Bob Gore found that if he rapidly stretched heated PTFE, the same material used in non-stick coatings, it expanded into a thin, strong, microscopically porous film. That material, expanded PTFE or ePTFE, became the GORE-TEX membrane, and it reached the outdoor market in the mid-1970s. The technology is still owned and produced by W. L. Gore & Associates, a privately held, associate-owned American company that licenses the membrane to the brands that build with it and enforces strict standards on how it is used.

Toray comes from a very different lineage. Toray Industries was founded in Japan in 1926 as Toyo Rayon, and today it is a publicly traded multinational headquartered in Tokyo that produces synthetic fibers, films, and high-performance materials at enormous scale. Two of those materials matter to anglers. The first is the carbon fiber that forms the blanks of many of the fly rods we sell. The second is Dermizax, Toray's hydrophilic polyurethane membrane, which has become a leading alternative to GORE-TEX in fly fishing waders. Where Gore is a focused materials company built around one breakthrough, Toray is a materials giant whose membrane is one product among thousands.

GORE-TEX: The Microporous Benchmark

GORE-TEX is built on that ePTFE membrane, which contains billions of microscopic pores. Each pore is too small for a liquid water droplet to pass through, yet large enough for water vapor to escape. The result is a material that is genuinely waterproof and breathable at the same time, and that does both jobs with very little dependence on the weather around it. GORE-TEX typically carries waterproof ratings up to roughly 28,000 mm, which makes it extremely resistant to water pushing in under pressure.

That is why GORE-TEX has dominated serious wading for decades. It offers consistent waterproofing under pressure, reliable breathability across a wide range of environments, proven durability over years of hard use, and the strict manufacturing standards that come with the license. On the water, it shines exactly where fishing is hardest on gear: standing still in cold current, kneeling on gravel, or fishing sustained wet conditions where the water never lets up.

Not All GORE-TEX Is the Same

One point that trips up a lot of anglers: GORE-TEX is not a single fabric but a family of them, each tuned for a different job. When you read that a wader or jacket is "GORE-TEX," it is worth knowing which one. The main constructions you will run into are:

• GORE-TEX Pro. The most rugged and durable of the family, built for hard, abrasion-heavy use over long days. This is the construction you want in serious wading gear that takes a beating from rock and brush.
• GORE-TEX (standard). The balanced, all-around version that delivers the classic mix of waterproofing and breathability for general use.
• GORE-TEX Active. Lighter and tuned for maximum breathability during high-output effort, at the cost of some durability.
• GORE-TEX Paclite. The packable, lightweight option meant for gear you carry more than you wear.
• GORE-TEX Infinium. Windproof and breathable for comfort and lifestyle use, but not held to the same guaranteed-waterproof standard, so it is not what you want between you and the river.

The development worth watching is Gore's move toward a more flexible, supple membrane. The old knock on GORE-TEX, and the gap Toray has spent years exploiting, was that it could feel stiff and shell-like, with a crinkle you noticed as you waded. Gore's newer, more flexible constructions are aimed squarely at that complaint: a softer hand and more natural stretch that move with your body without giving up the waterproofing and durability the name is built on. For fly fishing waders, that matters, because flexibility at the knee and seat is exactly what you feel when you are climbing a bank or crouching to land a fish. If Gore can deliver Toray-like suppleness with GORE-TEX reliability, the comfort argument that has driven anglers toward hydrophilic membranes gets a lot closer.

A practical note before you buy on the strength of a label: confirm the exact GORE-TEX construction and the current marketing name with the maker, since Gore's lineup and naming evolve and the membrane in this season's model may not match last season's.

And for those that want the latest and greatest GORE-TEX, bet on Sitka waders. Sitka is owned by W.L. Gore, the makers of GORE-TEX. It stands to reason that Sitka will have access to the most advanced form of GORE-TEX as long as they're owned by the same company that manufactures GORE-TEX.

Toray: The Hydrophilic Alternative

Toray's Dermizax works on an entirely different principle. Instead of relying on pores, it uses a solid, non-porous hydrophilic polyurethane membrane that moves moisture by molecular diffusion. Sweat vapor is absorbed into the membrane on the inside, transported across the material, and released to evaporate on the outside. There are no holes for water to find, and the absence of pores changes how the fabric feels and how it performs.

That difference plays to a distinct set of strengths:

• Greater flexibility and stretch, so the fabric moves with you.
• A softer, quieter hand that does not crinkle as you wade.
• High breathability when you are working hard.
• Strong performance in motion-heavy fishing.

Under the right conditions, some Toray membranes reach breathability levels in the range of 30,000 to 50,000 g/m2 over 24 hours, which is part of why anglers who cover a lot of ground in their fly fishing waders tend to notice the comfort.

The Core Difference: Microporous vs Hydrophilic

Strip away the marketing and the whole debate comes down to one contrast. GORE-TEX is a microporous membrane that lets vapor escape almost immediately and behaves consistently regardless of the environment. Toray is a non-porous hydrophilic membrane that transports moisture by absorption, which makes its performance more sensitive to temperature and humidity. That is the reason two honest anglers can fish the same week and come away with different impressions. They were testing the same materials under different conditions.

Breathability in the Real World

Breathability is the most argued-over spec in fly fishing waders, and the two technologies earn their reputations honestly. GORE-TEX stays stable across conditions, performs well even in humid air, and depends very little on outside factors. Toray, by contrast, excels during high exertion and performs at its best in dry, cold air, though it can feel warmer when the humidity climbs. The short version: Toray often feels more comfortable while you are moving, while GORE-TEX delivers more consistent climate control whatever the day throws at you.

Waterproofing: Where the Gap Shows

Both materials are genuinely waterproof. GORE-TEX rates up to roughly 28,000 mm and Toray's Dermizax sits around 20,000 mm, and in ordinary fishing you would struggle to tell them apart. The difference appears under sustained pressure. Leaning into current and kneeling on rock both favor GORE-TEX, while active wading and hiking are a wash where both perform well. In real-world fishing, both technologies are more than capable, but GORE-TEX keeps a slight edge in the most extreme, pressure-heavy conditions.

Comfort and Mobility

This is the territory where Toray has earned real ground in modern fly fishing waders. GORE-TEX tends to feel slightly stiffer and more structured, with a shell-like performance that some anglers prize and others find a touch rigid. Toray runs softer and more flexible, moving naturally with the body, which is why it is often the preference for anglers who hike to their water and stay in motion once they get there. If you are covering miles of river in a day, that difference is something you feel.

[ JEFF MACE . KENAI PENINSULA, ALASKA ]

Durability Is a System, Not a Membrane

Here is one of the most common misconceptions we hear: that the membrane alone decides how long a pair of fly fishing waders lasts. It does not. Durability is a product of the whole construction, and it depends on the face fabric and its denier rating, the layer construction whether three-layer or five-layer, and the quality of the seam construction and taping. Both GORE-TEX and Toray can be extremely durable when they are paired with serious construction, and both can disappoint when they are not. The fact that a major maker like Simms uses both materials across its different models tells you the membrane is a choice within a system, not the whole story.

Why GORE-TEX Waders Cost More

The price gap is real, and it is mostly explained at the membrane level. GORE-TEX carries licensing fees, strict production standards, and premium brand positioning, all of which push retail cost upward, often significantly. Toray allows lower production costs and more design flexibility, which translates into more competitive pricing. That is the simple reason so many strong mid-range fly fishing waders are built on Toray membranes, and why a Toray wader can deliver excellent performance at a friendlier number.

Who Uses What

To make the landscape concrete, here is how the membrane choice tends to break down across six of the fly fishing waders brands we know well. Use it as a starting map rather than a final spec sheet.

Membrane sourcing changes by model year, and several makers use proprietary laminates they do not publicly attribute to GORE-TEX or Toray. Confirm current specs with each manufacturer before you treat any single entry as gospel.

So Which Fly Fishing Waders Should You Buy?

There is no universal winner, only the right tool for the way you fish. We point anglers toward GORE-TEX when they tell us they fish cold water often, spend long stretches standing still, and want the most proven, all-condition reliability they can buy. We point them toward Toray when they hike long distances to their water, stay in constant motion once they are fishing, and want excellent comfort and flexibility at a better value.

Said plainly:

• Choose GORE-TEX if you fish cold water frequently, stand still for long periods, and prioritize durability and proven performance.
• Choose Toray if you hike to your water, move constantly while fishing, and want strong performance at a sharper price.

The Truth We Keep Coming Back To

For all the debate, the membrane is only one part of the system. The fly fishing waders we trust are defined just as much by fit, construction quality, design, and intended use. You can buy excellent Toray waders and mediocre GORE-TEX waders, and the reverse is just as true. GORE-TEX remains the benchmark for durability and all-condition reliability, while Toray keeps pushing comfort, flexibility, and value, and both, built properly, will keep you dry and let you focus on the only thing that matters once you are in the water.

Pick the membrane that fits your river.
Then go fishing.

Feather Craft · since 1955