Brave Person Men's Fashion Swim Briefs Smooth Nylon Fabrics Quick-Drying Underwear B1141 80% nylon Size(inch): S: 26"-29''stretch, M: 28"-32''stretch, L: 30"-35''stretch, XL:32"-38''stretch Material: 80% nylon + 20% spandex Smooth and soft elastic nylon fabrics, to wear at ordinary times, also suitable for swimming Design is simple but fashion, Super silence and smoothness with excellent running feature, comfortable pouch, wear very comfortable, it is a very good underwear. A variety of bright colors to choose from.