Aetrex Edge Orthotics provide comfort, support and pressure relief in footwear designed for outdoor sports such as skiing, snowboarding, hiking and mountain biking. This orthotic features a soft microfiber top cover and our signature Aetrex Arch Support to help biomechanically align your body & help prevent common foot pain such as Plantar Fasciitis, Arch Pain and Metatarsalgia. Orthotic Features: Cupped Heel Polyurethane Soft Microfiber Top Cover Helps With: Arch Pain Plantar Fasciitis Heel Pain Materials: Top Cover Material: Polyester/Nylon blend with Silicone SmartGrip(TM) Performance Base: AeroCell polyurethane Center Cushioning: FitGuard(TM) slow recovery memory foam Measurements: Insole Thickness: 0.12" Care Instructions: We recommend spot-cleaning Aetrex Orthotics with clear, mild soap and a damp cloth, and air drying naturally. Do not machine wash or dry.