A classic, all-around 100% recycled polyester baselayer. The smooth, soft face makes for easy layering. Hollow-core yarns and a diamond-grid back trap warm air, wick moisture and dry fast. HeiQ® Mint odor control keeps things fresh. Made in a Fair Trade Certified™ factory. Features: Smooth, soft face makes for easy layering; HeiQ® Mint odor control keeps things fresh Soft, brushed, fast-drying elastic is sewn into the wide waistband for added next-to-skin comfort and an improved fit; there's a locker loop for hang drying Diamond-grid pattern next to skin provides superior warmth, breathability and moisture-wicking performance Gusseted crotch for comfort and unimpeded mobility Flatlock seams to minimize chafing 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