-About MAINTENANCE: Hand wash with warm water about 30 degree. Do not soak for too long. Underwear is close-fitting and intimate clothing, which is easy to breed bacteria. For our health, it is recommended to change it every six months. -About SHIPPING: After payment, the parcel will be sent out within 24 hours. If there is a shortage, we will notify you by email. -About SIZE: Fabrics of different materials have different elasticity, so different styles of the same size will have a little difference in tile size. Thank you for your understanding. -Our community There is such a group of girls who pursue fashion ,self-confidence and have their own unique insights on dress . They are energetic and enthusiastic,love sports ,and like a healthy and natural body .They are advocating freedom .