MATERIAL: 100% Cotton Thermal FABRIC WEIGHT: 250 GSM FIT: True to Size. DESIGN: The Classic Thermal is your everyday go-to, soft, lightweight, easy layer. Its waffle-knit texture adds warmth without the bulk, keeping you comfortable from early morning runs to late-night hangs. Clean, versatile, and built to wear. MODEL: The model in the first photo is wearing a size Medium. Weight: 175lb Height: 5'9.