The prAna Ice Flow Legging is a warm, high-rise legging made from recycled polyester winter-weight jersey with a soft, brushed interior designed for outdoor activities in cold weather, such as hiking and trail running. Key features include a cozy brushed interior, moisture-wicking fabric for comfort during exercise, a hidden back zip pocket, a triangle gusset for reinforcement, and a bluesign® approved construction. The leggings are also versatile enough to be worn as a warm layer underneath jeans for extra cold days.