90% Polyester, 10% Elastane Imported Breathable & Stretchy Mesh: The mesh fabric of this biking underwear wicks away sweat quickly and keeps you cool and dry 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. Flatlock Stitching & Elastic Waistband: Flatlock stitching reduces friction and chafing, leading to increased biking comfort, while the elastic waistband provides a secure yet comfortable fit. 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. Multi-function: Biking underwear shorts is great for road bike, spin, mountain biking, commuting and leisure rides. It can wear as liner shorts under any regular shorts skirt.