I just spent a couple of winter months in a knee emobilizer.. I slipped on the ice after our first snow storm in NY, and the rest of the winter was pretty miserable..The brace I have is adjustable with velcro.. I'm not an extreme heavy weight but I think they come in bigger sizes.. I'm sure you aren't the only one that has this issue.. I'm actually in shock that my knee is working.. My MRI wasn't very pretty.. I have no cartliage left, fractured the patella, tore up a bunch of ligaments, have a bakers cyst, and I can go on.. The doc didn't want to operate, as he said the knee was shot.. and eventually it nneds to be replaced.. He's probably right, but I started exercising it after he gave me the go ahead, and I'm pretty happy with it..
Sorry to make this long..
The brace is made by Bledsoe, and it's called extender.. While I'm looking at it, it is very adjustable to huge.. I used it on the closest, but it has four long straps that velcro..
Barri