Legging designed for rock climbing with extremely durable, stretch fabric, low bulk seams and deep waistband. Arc?€?teryx promise that their ?€?merrowstitch?€?, low bulk seams will reduce the likelihood of damage to areas of high wear like the seat and knees. They noticed that climbers were buying expensive yoga pants and ruining them on rock so this legging is intended to be a climbing-first, all day garment that can cross over into yoga and lifestyle.