KINGDESON Men's Low-Waisted Sports Running Training Bottoms Lounge/Sleep Shorts comfortable and breathable,with 84% cotton + 16% polyester Breathable, flexible,comfy with pockets on sides. Hand wash softly in the cold water is highly recommended. Size S: Waist 25-28 inches;Size M: Waist 27-30 inches;Size L: Waist 29-32 inches;Size XL: Waist 31-34 inches Elastic waist, it can also be an active shorts.