Brave Person Elastic Fitness Pants Fashion Swimming Trunks Beach Pants Running Shorts Bj1010 80% nylon Size(inch): S: 26"-29''stretch, M: 28"-32''stretch, L: 31"-36''stretch, XL: 33"-38''stretch, Material: 80% Nylon+ 20% spandex. Smooth the nylon fabric of high quality, good elasticity, is a very good swimming trunks sports shorts. Spell color looks more fashionable, tight design, have very good shape body effect! The waist of the rope can adjust the size of the waist, make you feel more comfortable.