- Size: 45 • Professional orthopedic insole for severe flat feet. • 3/4 rigid reinforcement for greater arch support. • Full length without trimming, suitable for each size. • Relief for arch pain, plantar fasciitis, bunions, metatarsals, tired feet, valgus heels, and pronation. • Breathable, hypoallergenic, waterproof, and recyclable PU material. • Anatomical design to better distribute weight and increase cushioning. • Arch lift and metatarsal pad for added comfort. • Moderate heel tilt to straighten and reduce fatigue. • 6º elevation of the big toe for greater contact surface. • Designed by a team of podiatrists led by Dr. Raymond Ng Kwan.