This classic, all-purpose baselayer is made from 100% recycled polyester with a smooth, soft exterior for easy layering. Hollow-core yarns and a diamond-grid interior help retain warmth, wick moisture, and dry quickly. HeiQ® Mint odor control ensures lasting freshness. Produced in a Fair Trade Certified™ factory. Smooth, soft face makes for easy layering; HeiQ® Mint odor control keeps things fresh Classic crew styling with internal neck tape for added comfort; locker loop for hang drying Raglan shoulder seams allow freedom of movement, with full underarm gussets for range of motion and chafe-free comfort Elastic thumb loops for secure hand coverage Stretch for added comfort and improved fit during movement Made in a Fair Trade Certified™ factory, which means the people who made this product earned a premium for their labor