FABRIC TYPE :95% modal fiber+5% spandex. MODAL FIBER FEATURE: Ultra soft, Breathable, Comfortable, Moisture Transport ,Hygroscopic, Environmental health. ABOUT SIZE : S--28-30inch/70-76cm ; M--32-34inch/80-86cm ; L--36-38inch/90-96cm. U CONVEX POUCH DESIGN UNDERWEAR: Provide additional support,Healthier and more comfortable. Ergonomic pouch for maximum comfort and contour fit. MEN'S MODAL BOXER BRIEFS: Great for everyday wear. Healthy and comfortable underwear. Product Description About Modal fiber Modal fiber comes from natural wood which is soft and comfortable. Modal fiber has good gas permeability, instant water absorption, strong abrasion resistance and good dyeability. About Underwear design 3D pouch design,Provide more space,More comfortable and healthy. No-fly construction.Contoured to fit. Leg bands that won't ride up. About Size : S--28-30inch/70-76cm ; M--32-34inch/80-86cm ; L--36-38inch/90-96cm. X-Large---40-42inch/100-106cm. Ideal for everyday use, enjoy the all-day comfort and support of these men's boxer Briefs Provide quality and cost-effective products,Is what we have been doing