The Outdoor Research Men's Ferrosi Pant is a wind resistant pant built for Climbing. When you need some weather protection, but you'll be working hard so breathing is nice too. The nylon and spandex blend fabric is light, durable, plus stretchy. All the right ingredients to get you Climbing and having fun. Features of the Outdoor Research Men's Ferrosi Pant Button and zipper fly Zip tHigh pocket Brushed tricot-lined waistband Articulated knees Drawcord cuff closures Belt loops Harness-compatible waist Fabric Details 86% Nylon, 14% Spandex 90D stretch woven ripstop