Z-West Boot Shop the middle layer is a

the middle layer is a soft durometer foam and the bottom is medium durometer foam

Replaceable Heel Coil: Absorbs impact

True to Size Fit: Order your normal size

These insoles have a self adhesive strip to secure your insole to your sandal

Medium (Women's 5-11) are marked with "M" or "MD"

Z-West Boot Shop the middle layer is aThe Z West Boot effortlessly combines style and comfort for a soft, all day ride. Crafted with durable full grain leather on the outside and soft tan leather on the inside, these boots keep you comfortable while looking great. Plus, with a convenient zipper, slipping into them is a breeze. A zipper allows easy access on and off. Slip resistant Outsole: Ensures stability. Replaceable Coils: Easily extend lifespan. Contoured Orthotic: Conforms to foot