The Gamma hoody from Arc'teryx was made for tough mountain terrain and hiking expeditions. This iteration has been updated to include an easy single adjuster on the hood as well as two chest pockets and increased recycled material, delivering performance with a more sustainable footprint. 88% Nylon, 12% Elastane, Durable Water Repellent Finish, Helmet Compatible StormHood™, No Slip Zip™ Closure, Multiple Pocket Styling, Printed Branding, Style Code: X000009905-002291. Shop All Men's Arc’teryx Parka Coats, Shop All Men's Parka Coats.