SEAMLESS UNDERWEAR: Real seamless style, made of ice silk fabric. Not once wearing product. The material is soft and silky touch. Make you forget wearing it. Lining used 100% cotton, health and breathable.DESIGN FEATURES: Our seamless panty will stay in place. No show, no slipping, no ride up. Can wear under your workout pants, in yoga, legging, jeans, gym, hiking. It's also a very sexy hipster brief.SIZE FIT: We use good material to make it in good stretch without loose or tight. Also we have size guide chart for your reference.CARE INSTRUCTION: Our bikini underwear can use machine wash or hand wash. Fast drying. No Iron.SERVICES SUPPORT: We would like to hear from you when you have any questions or suggestions. We also provide no-reason full refund. to make you great shopping experience.