Fresh Kicks® Crease Stoppers are a significant advancement in shoe crease prevention. Our unique design allows a comfortable fit while still providing excellent protection, without compromising utility.  We are NOT made of cheap plastics like other brands. These breathable, flexible shoe Crease Protectors will stop creasing and hold the shape of your shoes while on foot or in storage. You do NOT need to purchase larger footwear to accommodate the insert. You also do NOT have to remove other inserts, such as insoles.  (Men's US) Size Guide: Small/Medium: Sizes 4-7.5 Large/X-Large: Sizes 8-13 (Women's US) Size Guide: Small/Medium: Sizes 5.5-9.5 Large/X-Large: Sizes 10-15