SUNDANCE Z-Flex Static Air Boot (443KMD)

Mine were sent home with me after a hospital stay. l loved the boots; very comfortable; easy on/easy off.
My complaint is, they deflated after 3 months. At $50 each, l would expect a longer life span.
There wasn't a tear or split or any sign of an open area where the air could escape; VERY disappointing!
One would think, at that price, they would last longer.

They came pretty quick which is appreciated since mine had popped. They are all new and we're exactly what I ordered.