XcelTrax® Air Tall Air Walker Boot Pneumatic Adult Small Tall (783547_EA) 1/EADesigned for support and comfort following trauma or post operative procedure Lightweight design and pre shaped ergonomic frame help to modify the level of pressure on the injury at both the malleoli and lower leg. Soft nylon foam liner has an integrated pump design making the pneumatic liner simple to inflate and adjust. Small fits those who wear men's shoes, size 4 5 or women's shoes, size 6 8.