Pair of plantarfix, arch pad support insole comes in 2 pieces. left unmanaged, flat feet can increase one's risk of more serious health problems including back pain, joint pain, and even immobility. for flat-footed people . this plantarfix will help in raising the arch of the foot and my pain will be gone. stepping down from bed is not a painful exercise every morning. arch pad support insoles flat foot correction high arch cushioning plantar fasciitis pain relief massage cushions foot care.