Brave Person Low Waist Bikini Swimwear Men's Comfortable Fashion Underwear Briefs B1133 Size(inch): S: 26"-29''stretch, M: 28"-32''stretch, L: 31"-36''stretch Material: 80% Nylon+ 20% spandex Low waist is designed, comfortable pouch, smooth nylon fabric, suitable for swimming. Design is contracted but very sexy,all kinds of bright colors.