The KÜHL KRUISER Men's Short can take the heat. It’s lightweight recycled nylon stretches while actually lowering your skin temperature. The textured fabric and elastic mesh waistband speeds dry time. Maximum sun protection (UPF 50+) meets unmatched comfort.Features Zipper back pocket Drawstring cinch waistband Specs 56% Recycled Nylon, 40% Nylon, 4% Spandex | 118 GSM UPF 50+ sun protection SizingKuhl Men's Bottoms Sizing Waist (in.): 30 32 34 36 38 40 S (Short) Inseam: 30" R (Regular) Inseam: 32" L (Long) Inseam: 34"