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Supermarine Rain Pant

Supermarine Rain Pant

Classic good looks meet serious weather resistance. A tailored pant made with our Supermarine Cotton so you can stay dry, keep moving and look good no matter the weather. An Outlier experimental edition.

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Serious weather resistance meets classic good looks. Supermarine Cotton is some of the best rainy day fabric around, we've made jackets, shirts, hats and shoes from it, so it was about time we got to work on some pants. Doing it right meant combining Supermarine's tight weave with our standards of movement. We engineered them for movement with a gusset made from 4Season fabric and a hidden expansion insert at the knee. The result is a highly weather resistant pant that is more comfortable, more breathable and quieter than any "rain proof" pant we've seen.

A note about Supermarine Cotton; while it's not waterproof by government standards, it will keep you dry for an hour or two and without that sweaty clamminess that comes with synthetic "waterproof-breathable" fabrics. These pants can hold up in a rainstorm, and you can still walk in the door to just about anywhere and look damn good doing it.

An experimental edition of 25.
The secret to the future, they say, is hidden in the past. Supermarine® Cotton is a 21st century edit to a nearly forgotten World War II fabric. You can think of it as the pinnacle of cotton technology, extremely breathable, highly water resistant and completely windproof. It can only be made using the longest staple Egyptian cotton fibers. They are woven together in a complex weave that swells up and seals when exposed to water. The result is a beautiful cloth that we think is the best rainy day fabric around.

For decades it's been obscured from the public, kept alive mainly by demand from a few Air Force units, Antarctic explorers and funnily enough, bird watchers; all who have different understandings of its unique properties. Supermarine® Cotton stays comfortable under pressure and there is none of that sweaty/clammy feeling you get with GoreTex and other synthetic "waterproof-breathable" fabrics. It isn't technically "waterproof" by government standards but you can stay dry for hours in the rain wearing it. It's woven from the longest staple Egyptian cotton so it breaks in beautifully. The dense weave combined with the premium fiber results in a fabric that is simultaneously tough and supple.

Historically this fabric is an updated version of a fabric the British invented in World War II to keep their pilots alive in the North Sea if they happened to get shot down. It was later used by the British Navy, in Antarctic exploration and by Edmond Hillary during the first ascent of Mount Everest. It was even used to make fire hoses and eventually found its way into high-end hiking gear. Since it requires a very dense weave of the most expensive cotton fibers on the market, it never quite broke through into the mainstream and with the advent of GoreTex it faded from the general marketplace. Bird watchers still sought it out since it's significantly quieter than the loud synthetic fabrics that took over, while Antarctic teams prized it for its amazing windproof quality. The main customer of the past few decades however has been various Air Forces who understood just how superior a fabric it is, and are willing to pay for it.

We source our Supermarine® Cotton from Switzerland (where it goes by the tradename ETAProof®) and it differs from the historical British version in one important respect, it is treated with a premium durable water resistance (DWR) that is not wax-based. The water resistance in the historical formulation comes from two factors, the denseness of the weave and the fact that cotton fibers swell up when exposed to moisture. Adding the DWR treatment into the mix results in a significantly superior rain repellant and breathable fabric that far outclasses both the synthetic "waterproof-breathable" fabrics of the world and the heavy, clammy Barbour-style waxed cotton. It looks better, wears better and is dramatically more comfortable.

We've been testing this stuff extensively over the past year and we keep on thinking we've stumbled upon a little bit of magic. We made button down shirts and walked out into torrential downpours without a jacket or umbrella. We've done hours of laps in Prospect Park during thundershowers wearing the same shirt and stayed dry. We've taken it out into 100% desert heat to see how well it breathes. We challenged our bike messenger friends to beat it up on the road. More important than all that though was the fact when we headed out of the house, we almost always reach for a Supermarine® Cotton shirt or parka, not because we wanted to test it, but because we wanted to wear it.
  • 100% Supermarine® Cotton woven in Switzerland (ETA Proof®)

  • Highly water and wind resistant

  • Super breathable

  • 4Season gusset

  • Hidden expansion insert at knee

  • Supplex pocketing

  • Rear welt pockets

  • YKK zipper

  • Medium lean cut, buy the size you normally wear

  • Available in Black

  • Dry clean only, spot clean if necessary

  • An Outlier Experimental Release

  • Made in New York City
  • Sizing

    Fits true to size. Medium lean cut that tapers to narrow leg.

    Size Chart (in inches)

    28 29 30 31 32 33 34 35 36 38
    Inseam 33.5 33.5 33.5 34 34 34 34.5 35.5 35.5 36
    Leg Opening 14 14.25 14.5 14.5 15 15.5 16 16.25 16.5 17
    Technical Waistband 30 31 32 33 34 35 36 37 38 40