Features of this item include: Arch Pain, Arthritis, Back Pain, Blisters, Bunion, Calluses, Diabetic Feet, Heel Pain & Heel Spurs, Metatarsalgia, Plantar Fasciitis, Pronation. BioSole-GEL professional foot orthotics are uniquely engineered with a bladder, filled with viscoelastic gel and polyurethane foam, which dynamically shapes to the contours of the foot, providing customized support and alleviating pain off your foot, all the way up your knees and low-back. Gel padding along with a trampoline design works wonders to relieve heel-pain, and cushion your foot every step you make. Polyester mesh lining provides a soft, friction free surface that wicks away perspiration. The result: superior foot orthotic that maximizes comfort from heel to toe.