This cast provides exceptional support and comfort. Very customizable inflation chambers that have helped reduce swelling and increased support. I used this cast for a broken Fibula at ankle. My clinic provided the walker FP upon initial diagnosis of a broken ankle which worked to stabilize the fracture until further medical consultation. Fortunately I did not require surgery, however the AirCast FP did not provide the stability needed for weight bearing nor the level of customization or comfort, especially to help with swelling. In consultation with my medical provider, I ordered the walker XP once my fracture was stable and it exceeded my expectations. It is much more comfortable than the FP and has allowed me to begin weight bearing (with medical guidance of course) which I cannot do in my FP without discomfort. This cast has accelerated my healing process by minimizing atrophy and supported walking earlier, as well as helped reduce swelling. I am very pleased with this purchase. Also, a lot cheaper to buy here than through a medical provider but of course, you should totally check with your orthopedist. Also, quick note; not a good cast if you have large calves, which I do not have so it works excellently for me.