With its innovative, seamless, 3-D knit structure, our Capilene® Air Bottoms offer amazing warmth and comfort range. An airy blend of 51% RWS-certified merino wool and 49% recycled polyester wicks moisture, resists odor and dries in a flash. All of the virgin wool Patagonia sources is certified to the Responsible Wool Standard (RWS) to help ensure protection both for the animals that supply it and the land they graze. Greatest Range of Warmth and ComfortFine merino wool from New Zealand blended with Capilene® recycled polyester for enhanced warmth balanced with improved wicking, durability and dry timeInnovative Airblasting Technology18.5-micron-gauge yarn; lofted-wool innovationSoft and Skin-FriendlyFabric is soft against skin and stretches to moveSeamless 3-D constructionSeamless 3-D construction eliminates chafe points through the entire garment and has almost no wasted materialCleanly-Designed WaistbandElastic waistband is brushed for next-to-skin softnessDoubled-Fabric CrotchDouble layer on front crotch for additional support