Our classic, go-anywhere all-around baselayer, made with 100% recycled content. 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 Fresh durable odor control keeps things fresh. Fair Trade Certified sewn. The smooth, soft face makes for easy layering and HeiQ Fresh durable odor control keeps things fresh Soft, brushed, fast-drying elastic waistband 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 Fair Trade Certified sewn 164 g (5.8 oz) 5.1-oz (147-g) 100% recycled polyester diamond-grid double knit with HeiQ Fresh durable odor control. Fabric is certified as bluesign approved.