Recommended by podiatrists and orthopedists for a variety of conditions including heel pain, shin splints, and metatarsalgia Depth in the arch and heel cup Small Men 5-7 Women 7-9 Replacement insoles made of dual-density EVA foam for athletic and sports shoes Firm control EVA insoles for support and comfort Simply BONZ full length insoles are constructed of cool, breathable dual-density EVA (Ethylene Vinyl Acetate) foam. Simply BONZ full length insoles are designed with greater depth in the arch and heel cup in order to maximize contact with the foot. By distributing the body weight over a larger area under the foot, pressure in all areas are significantly reduced with the BONZ full length insoles. Deceleration of pronation through the use of flexible Simply BONZ full length inserts can greatly reduce the stress on all of these structures: plantar fasciitis, heel pain, knee pain, bunions, IT band problems, low back strain, and shin splints. If you have these injuries or need relief for heel pain, buy Simply BONZ full length insoles with control and cushion.