PowerStep SlenderFit 3/4 insoles made of a black polyester top fabric and foam layer cushioning with external "S"-shaped, semi-rigid polypropylene support shell arch and foam metatarsal cushion. These fashion 3/4 insoles were designed with the female foot in mind. It's built-in arch support and plush cushioning foam layer are the perfect balance of comfort and support in an ultra slim design for lower profile women's fashion shoes. PowerStep has 3/4 length with tapered edge leaves extra room at the toes while the built-in metatarsal cushion alleviates pressure under the ball of foot for greater comfort and protection. The metatarsal cushion features a natural grip underneath that helps hold the insole in place. The "S"-shaped arch design has a low, flat heel cradle that adds stability to limit excess stress on feet, ankles, joints, and tendons. This insoles are intended for women's fashion shoes that do not have a removable factory footbed and designed for shoes with less depth at the toes such as: high heels, wedges, pumps, boots, sandals and flats. Proper care: spot clean with mild detergent. Do not immerse in water. Air dry. All sizing is based on US shoe sizes. PowerStep insoles are brand new and 100% authentic.