Minetom Men's Solid Swimwear Briefs Triangle Swimming Trunks Available in Many Sizes Fabric: 85% polyester + 15% spandex Material: 95% polyester + 5% spandex Cold Water Hand Wash Only Feier shark boxers itself structure and perfect body fit,the upper part of the body effect of comfortable,wear decent Antimicrobial Fabric. Superelastic materials. More comfortable and breathable. Ideal for regular training and pool use.