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. HeiQA(R) Pure odor control keeps things fresh. Made in a Fair Trade Certified(TM) factory. Product Specifications: Smooth, soft face makes for easy layering; HeiQA(R) Pure odor control keeps things fresh Soft, brushed, fast-drying elastic for added next-to-skin comfort; locker loop for hang drying Fabric&';s diamond-grid pattern next to skin provides superior warmth, breathability and moisture-wicking performance Gusseted crotch for comfort and unimpeded mobility Functional fly and flatlock seams to minimize chafing Stretch for added comfort and improved fit during movement Made in a Fair Trade Certified(TM) factory, which means the people who made this product earned a premium for their labor Product Specifications: Fabric: 4.3-oz (147-g) 100% recycled polyester diamond-grid double knit with HeiQA(R) Pure odor control. Fabric is certified as bluesignA(R) approved. Made in a Fair Trade Certified(TM) factory Fabric: 4.3-oz (147-g) 100% recycled polyester diamond-grid double knit with HeiQA(R) Pure odor control. Fabric is certified as bluesignA(R) approved. Made in a Fair Trade Certified(TM) factory