The Terravia Alpine Pants from Patagonia are lightweight alpine climbing pants made with 4-way stretch fabrics that combine a lightweight recycled polyester/spandex main fabric that provides excellent breathability and unrestricted freedom of motion with durable recycled nylon/spandex paneling for extra protection from abrasion on the rock. 4 zippered pockets provide lots of options for keeping your small quick access items accessible and secure. The low-profile waistband has a separating zippered fly and an integrated adjustable belt. The leg cuffs have reinforced panels for extra abrasion resistance and adjustable low-profile shock cords.