SKU: AW22226 Weighs: 160g (size UK 12) Baselayer Fabric: Synthetic Baselayer Fit: Athletic/Close Fit Patagonia's Capilene Theramal Weight Bottoms are warm, breathable polyester baselayers with minimal bulk. Polartec Power Grid fabric with Polygiene permanent odor control. Fair Trade Certified sewn. Patagonia says: … Womens Capilene Thermal Weight Bottoms