90% Polyester, 10% Elastane Imported 【Friendly Tips】Size option is US size, Please check size chart in "product description" before order the cycing undershorts(Try reference with waist and hips).For any unfitness, please contact us.Wash under 100 degrees F, hand washing or machine (Put in mesh laundry bag when washing in machine). Do not brush or bleach them. Breathable & Quick Dry: Cycling underwear made with 90% Polyester,10% elastane mesh fabric wicks away sweat quickly and keeps you cool and dry. Lightweight & Stretch: Bike underwear features 4-way stretch for absolute cloud-like comfort. Flatlock stitching reduces friction and chafing, leading to increased biking comfort, while the elastic waistband provides a secure yet comfortable fit. Ergonomic 4D Chamois Pad: These bike underwear feature a women's specific seamless, breathable, high-density 4D foam padding with ergonomic structure, which guards the sensitive areas, reduces chafing between thigh and shorts to ensure pain-free rides, provides close skin contact to achieve the best fit, and brings best effect of shock absorption. All Year Wearing: This padded biking underwear perfectly work under leggings, shorts, skirts, capri and pants, all regular clothes can be turned into bicycle wear and suitable for all year. Great for road bike, spin, mountain biking, commuting and leisure rides.