The in-stock will be shipped within 1-2 days, the pre-order will be shipped within 15 business days. Materials: ShellA：20% Polyester  40% Viscose  40% Metal Coated Fiber ShellB：100% Polyester Lining：100% Polyester  Features: The jacquard fabric has a silky and light feel, and the texture is exquisite and elegant. The bow design on the back prevents shoulders from falling off and increases stability. Metal steel buckle design makes it easy to put on and take off and has a sense of quality. Retro lace patches add visual layering. Detachable design, multiple ways to wear to suit the four seasons.