APMA approved Baby boy's and girl's washable bootie with hook and loop strap closure for easy on/off Removable sock insole for a wider fit Washable materials Memory foam footbeds Oversized openings for easy-on Adjustable hook-and-loop closure with elastic laces that adapts for the perfect fit Removable 'fit check' insole indicates when kids need a new size Lightweight flexible outsole Rounded soles