Type Size Height Waist Chest Standard Tshirt XS 21.5 18 19 Standard Tshirt S 22.5 19 19.8 Standard Tshirt M 23.5 19.7 20.5 Standard Tshirt L 24.5 20.5 21 Standard Tshirt XL 25 21 22.5 Standard Tshirt XXL 25.5 22 23 The illustration above shows how to check your correct size by placing a shirt on a flat surface and measure the chest Size ,Waist and Height. Consider up to 5 precent shrinkage after washing, so if you're not sure, take one size up.