This versatile baselayer is crafted from 100% recycled polyester, making it an eco-friendly option for all-around performance. Its smooth, soft exterior ensures easy layering under jackets or sweaters, while the interior features hollow-core yarns and a diamond-grid pattern designed to trap heat, wick away moisture, and dry quickly. These features help you stay warm and comfortable, even during intense activities. Additionally, the HeiQ® Mint odor control technology helps maintain freshness throughout the day. Proudly made in a Fair Trade Certified™ factory, this baselayer supports ethical production and sustainability. 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