ToBeInStyle Men's Long Sleeve Thermal Set w/ Ankle Long Pants 100% Cotton Measurments: (Small - Chest: 28-31, Waist: -32; Medium - Chest: 37-40, Waist: 31-34; Large - Chest: 40-43, Waist: 34-38; XLarge - Chest: 44-47, Waist: 37-40; XXL - Chest: 48-50, Waist: 42-45) 100% Cotton Machine Warm Wash. Tumble Low.