Drew's Lightest Shoe Ever! Airee offers all the therapeutic benefits of Drew footwear to keep you healthy on your feet. Lightweight EVA outsole helps absorb shock. Removable Insole. Amazing all day comfort. Features: Added Depth with Removable Insole, Poron and EVA Insole with Drilex Topcover, Drilex Lining, Rocker Bottom, Lightweight, EVA Outsole, Tempered Steel Shank, Girm Heel Counter, Soft, Foam-Padded Collar, and Accommodates Prescribed Orthotics. Meets HCPCS Code A5500. Definitions Outsole , EVA , Heel , Insole Fit: This style tends to run narrow, We recommend purchasing a wider width.