The Patagonia Women's Capilene Lightweight Bottoms offer exceptional breathability, stretch and ultrafast dry times. Capilene Lightweight is their lightest-weight, fastest-drying and best-wicking baselayer. The fabric's subtle grid pattern sits lightly and comfortably on the skin; the smooth outer face glides easily in any layering system. Highly breathable for high-exertion and warm conditions, the fabric is bluesign approved, 100% recycled polyester with 35-UPF sun protection and is treated with Polygiene permanent odor control. Features:Capilene Lightweight has a smooth face for easy layering Fabric's open grid pattern next to skin provides excellent breathability, moisture-wicking and dry time Flat waistband has brushed inner elastic for next to skin softness Gusseted crotch for comfort and unimpeded mobility Flatlock seams to minimize chafing Fabric: 100% recycled polyester double knit