Godsen Men's Two Piece Thermal Underwear Set Top & Bottoms 93% Cotton 7% Spandex Jestey180g/m2 Machina washable Comfort, quality, personality, fashion Ultra Soft, Warm and Comfortable Great to be Wear Alone at Home or Add an Extra Layer of Warmth Under Your Clothes 2 Pieces Thermal Set Elastic Waistband On Pant Lightweight but warm