- Size: 37 • Professional orthopedic insole designed for severe flat feet. • 3/4 rigid reinforcement for greater arch support. • Full length without trimming, suitable for each size. • Relief for pain in flat feet, arches, plantar fasciitis, bunions, metatarsals, and more. • Anatomical design with high arch elevation and metatarsal pad. • Wrap-around heel contour for better weight distribution and impact cushioning. • Moderate heel tilt to straighten and reduce fatigue. • 6º elevation in the big toe for greater contact. • Breathable, hypoallergenic, waterproof, and recyclable PU material.