My husband recently had surgery on his achilles tendon. He will be in a cast at least a total of 8 weeks. Prior to his surgery I was searching to see what we could use to cover his cast that would be better than the ole trash bag and tape....I found this, it had good reviews, so I bought it. We have been using it for the last 6 weeks, and it has worked perfectly every time. The rubber at the top is heavy duty, and that includes stretching it quite a fair amount to get it over the bulky cast. I grasp the front part of the rubber top, husband grasps the back, we each stretch it out and pull it up over his cast; I must say I am not sure how it would be for only one person to try and put it over the cast. To give a size reference, my husband is average size, 5' 11" weighs about 175. No problems with leaking, and it is so much easier and faster than bag/tape.