It is designed for low-arch,High arch, plantar fasciitis, flat foot, and etc. Good For : Plantar fasciitis, flatfoot, over pronation and high arch foot. 3/4 Orthotic Insole x1/2/4 Pair. High Quality Materia l: the insoles was made of EVA+Velvet, soft and elastic, breathable and sweat-absorbent, wear-resistant and durable;.