Rigid protection: Sturdy design constructed of an extra-strong polymer plastic shell and anatomically shaped uprights reinforces protection and support on both sides of your foot and ankle and facilitates a better fit Compression and comfort: Integrated pump mechanism easily inflates and deflates the pneumatic, soft foam/nylon liner for adjustable comfort and support Safe ambulation: Lightweight materials, rocker sole, durable tread pattern, and inner/outer foam cushioning help absorb shock upon heel strike and promote a natural gait for a safe walking solution Hand washable Extra large fits those who wear men's shoe size 12½ or larger or women's shoe size 13½ or larger Package/UOM: Each (EA); manufacturer item 155-79-95518; UPC 612479258167. Product Specifications Quantity Per Sell: 1 Shipping Dimensions: 5 x 17 x 12 IC Shipping Weight: 3.2 LB Application: Air Walker Boot Brand/Series: McKesson Color: Black Size: X-Large Shoe Size: Male 12-1/2 and Up / Female 13-1/2 and Up Intended User: Adult Material: Foam / Nylon / Plastic Latex Free: Not Made with Natural Rubber Latex Country of Origin: Vietnam FSA Eligible: Yes