Description:  3/4 orthotic insole: unique design, ergonomic and lightweight, which is aim to provide both stability and flexibility. U-shaped heel cup: it can better fit the heel, relieve the pressure on the sole of the foot, and make walking more comfortable. Arch design: fit the foot, balance the force, so that walking more light. Specifically for plantar fasciitis, flat feet, fallen arches. Bottom pad: the bottom heel of the insole has a pad to prevent slip and absorb shock. Soft Material: made of EVA and flannel material, strong three-dimensional feeling, warm, soft, comfortable to wear. No odor: the top side is also pasted with a four-way stretch special fabric to control odors and blisters. Specifications:  Product name: orthotic arch support insole Material: EVA + flannel Feature: soft, breathable Color: blue + black Size(approx.): S, M, L, XL size                  L x W                               recommended feet size(EU) S         15.5 x 7.4cm/6.10 x 2.91inch                39-40 M        17 x 7.6cm/6.69 x 2.99inch                   41-43 L         17.5 x 8.4cm/6.89 x 3.31inch                 43-46 XL      18.5 x 8.6cm/7.28 x 3.39inch                 46-49 Package Includes:  1 Pair x Orthotic Arch Support Insole Note:  1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 0.5-2 cm differences due to manual measurement.