Polartec® Power Grid™ fabric has a smoot;h face for easy layering fabric' brushed-grid pattern next to skin provides superior warmth, breathability and moisture-wicking performance with Polygiene® permanent odor control Self-fabric backing on collar with internal neck tape for comfort locker loop for hang-drying Long center-front zipper vents body heat and is backed by kissing welts for low-bulk comfort next to skin Raglan shoulder seams allow freedom of movement Full underarm gusset for range of motion and chafe-free comf;ort Elastic thumb loops for secure hand coverage Flatlock seams to minimize chafing drop tail for more coverage

Fabric Solids: 4.4-oz (150-g) Polartec® Power;Grid™ 100% polyester (93% recycled) double knit heathers: 4.8-oz (160-g) Polartec Power Grid100% polyester (63% recycled) double knit both with Polygiene® permanent odor control. Fabricis certified as bluesign® approved Fair Trade Certified™ sewing