With the ever-changing terrain on the trail in mind, the Arc'teryx Squamish jacket is crafted from ultra lightweight Tyono nylon. Wind and water resistant, you can pack the jacket into the chest pocket when the sun finally makes an appearance. 100% Nylon, Adjustable StormHood™, Zip Closure, Side Pockets, Style Code: X000007411-001280. Shop All Men’s Arc'teryx Jackets, Shop All Men’s Casual Jackets.