The prAna costas legging is made with Chakara performance stretch moisture-wicking jersey. The design features include a wide high-rise waistband, seam lines for shaping, and a Triangle gusset for added comfort and reinforcement., Fabric: Body: 88 Supplex (r) Nylon / 12 Lycra (r) ElastaneMesh: 72 Nylon / 28 Spandex