Brave Person Super Soft Nylon Bikini Men's Yoga Exercise Briefs Good Elasticity Underwear 1119 Size(inch): S: 26"-29''stretch, M: 29"-32''stretch, L: 32"-36''stretch, Material: 80% Nylon+ 20% spandex Sexy low waist bikini style, comfortable pouch. Smooth elastic nylon fabric, Is not transparent, also suitable for swimming.