I was watching Shark Tank a while back and saw a guy trying a pitch on a ratcheting belt, instead of the holes on common belt it uses a ratchet mech. Thought it would be interesting for CC since it is tough to find that sweet spot thats not too tight but also isn't falling off. But...there can be alot of stress on it too, so not sure the mechanism is tough enough...I will email customer service and ask if they have any input or guaranty and will report back.....
http://missionbelt.com/
http://missionbelt.com/