?Warning?When first using arch support insoles, start with 2-3 hours daily. Gradually increase usage after feet adapt to walking insoles. Contact us with questions about using flat foot orthopedic insoles. ?Appropriate Size?To ensure a better fit of orthopedic insoles' arch support with your feet, choose the closest size when purchg. Also, make sure your shoes have enough room inside for using overpronation insoles. ?Suitable for Daily Use?Ergonomically designed orthotics aid in proper foot alignment. If your job requires standing all day and walking, like teachers, servers, or office workers, don't miss these plantar-fasciitis insoles. ?Material Structure?Rigid TPU at arch support offers effective support for 220+ lbs. Breathable velvet fabric on shoe inserts for plantar fasciitis prevents odor. EVA layers give extra cushioning. ?Foot Pain Relief?Our shoe soles are designed to alleviate feet pain caused by Plantar fasciitis, heel spurs, Achilles tendonitis, metatarsalgia, bunions, lower back pain, and more. Achilles tendonitis insoles can help reduce discomfort. ?Metatarsalgia Massage Ball?The foam insert features a massage ball design at the metatarsal area. By stimulating the Yongquan acupoint, it provides anti fatigue, foot pain relief, and metatarsalgia alleviation, promoting overall relaxation. ?Orthotic Insoles?Our shin splint insoles feature a 4cm high arch support and medial wedge design, effectively treating overpronation and O-legs, while also alleviating symptoms of high arches and flat feet.