Bibi Kids - 316066 (Infant) (White) - Kids' Shoes: Darling boot makes for cozy feet this fall. Synthetic mesh and leather upper with faux fur trim, materials designed to provide greater softness and allow the foot to breathe; Hook-and-loop strap crosses behind ankle for a secure fit. Lining is made of anti-allergic polyester that allows the feet to transpire for health purposes. Antimicrobial treated to keep foot odor away. Flexible and skid-proof, the soles offer greater safety. The exclusive Change System shows when it is time to change shoes.