The Patagonia Men's Capilene Lightweight T-Shirt is Patagonia's lightest-weight, fastest-drying and best-wicking polyester baselayer with Polygiene® permanent odor control.  Pair it with heat, sweat and hardscrabble miles. Capilene® Lightweight is Patagonia's 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 100% recycled polyester with 35-UPF sun protection and is treated with Polygiene® permanent odor control. Features include a self-fabric collar with internal neck tape for chafe-free comfort, full underarm gussets for unhindered shoulder mobility, flatlock seams to minimize chafing, offset shoulder and side seams to lie smoothly beneath pack straps, and a drop tail for additional coverage. Fair Trade Certified™ sewing. Features and Specifications Capilene® Lightweight has a smooth face for easy layering with Polygiene® permanent odor control. Fair Trade Certified™ sewingFabric’s open-grid pattern next to skin provides excellent breathability, moisture-wicking and dry timeSelf-fabric collar with internal neck tape for comfortLocker loop for hang-dryingOffset shoulder seams eliminate chafing under pack strapsFull underarm gusset for range of motion and chafe-free comfortFlatlock seams to minimize chafing; drop tail for more coverage 2.3-oz (80-g) 100% recycled polyester double knit with Polygiene® permanent odor control Fair Trade Certified™ sewing Fabric is bluesign® approved 76 grams Patagonia Men's Capilene Lightweight T-Shirt