i am hi and tight, and even custom steel device was making my stack burn. It would find its way further down every time I got excited and stay there, which caused the thin skin to stretch and easily get irritated while doing anything. Solution...socks. I cut the ends off of an ankle sock, and put over the cage and balls before undies. It was tight enough to stay on, loose enough to not cause further irritation, and prevented any and all chaffing. I walk miles at work, am very active, and this did the trick. Hope this helps someone's balls!