When fashion meets function. Aetrex Speed Orthotics are designed for runners that want to enhance their competitive edge. Our Speed Orthotic will help prevent injury, alleviate discomfort and help 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. These orthotics are best for running shoes, athletic sneakers and tennis shoes. L720 -Our orthotics for low arches to flat feet with no forefoot pain, featuring a posted heel to control over-pronation and provide balance. Details: Top Cover Material: Mesh fabric with antimicrobial lining Center Cushioning Material: Exofoam™ for super light-weight cushioning Performance Base: Aerocell™ polyurethane for high energy return Insole Thickness: .2165" Recommended for: Running, Cross Country, HIIT workouts, Sprints, Interval Training Best for: Running shoes, Athletic sneakers, Tennis shoes