**Size/Fit Summary: True to size, Regular fit. Sizing suitable for 5-11 year olds (size 13-5). Due to the lining, if they are in-between sizes or want to wear a thick sock, it is recommended to size up.**** Our cozy tonal pink Big Kids Insulated Rain Boots are designed to keep small feet snug and dry during winter. Each boot is handcrafted, like our iconic Original Boots, from 100% waterproof natural, vegan rubber with an anti-slip sole and a microfleece lining for extra warmth. We recommend that all Hunter boots be worn with socks to protect the wearer's skin from contact with rubber. All Hunter Boot Socks are specially designed for use with our kids boot range and feature a fold over top to cover the rubber and nylon boot edge, preventing any rubbing associated with wear.