Our lightest-weight, fastest-drying and best-wicking baselayer, with Polygiene® permanent odor control and Fair Trade Certified™ sewing. Capilene® Lightweight has a smooth face for easy layering. Fair Trade Certified™ sewing Fabric’s open-grid pattern next to skin provides excellent breathability, moisture-wicking and dry time with Polygiene® permanent odor control Self-fabric binding at collar with internal neck tape for comfort; locker loop for hang drying Offset shoulder seams eliminate chafing under pack straps Full underarm gusset for range of motion and chafe-free comfort Elastic thumb loops for secure hand coverage Flatlock seams minimize chafing; drop tail for more coverage 2.3-oz (80-g) 100% recycled polyester double knit with Polygiene® permanent odor control. Fabric is certified as bluesign® approved. Fair Trade Certified™ sewing