The PowerStep Pinnacle Low Insoles are a strong, medical-grade semi-rigid foot support. They have a double layer of shock-absorbing EVA/VCT(variable cushioning technology) foam cushioning for enhanced comfort. The top of the insole is covered with a friction-reducing, anti-microbial fabric. They are ideal for athletic shoes, dress shoes and casual shoes as well as boots. The PowerStep Pinnacle is ideal for foot and heel conditions such as mild to moderate overpronation; hammertoes and claw toe; bunions; neuroma; calluses; plantar fasciitis; heel pain; and other common foot conditions.