These orthotics are best for running, athletic, & tennis shoes. Aetrex Speed Orthotics are designed for runners who want to enhance their competitive edge. Our Speed Orthotic will help prevent injury, alleviate discomfort, and reduce fatigue while running. This orthotic features our signature Aetrex Arch Support to help biomechanically align your body & help prevent common foot pain such as Plantar Fasciitis, Arch Pain, and metatarsalgia.