No lie. Right Guard Total Defense 5 with Active cooling . . .
You will find , likely, that your BTL temp (between the leg LOL!) will still rise and you may get sweat as before, but trust me on this and feel free to report back . . . apply to "leg pits" just as you would arm puts and I think your worries are a thing of the past. My son used to get chaffing really bad as well, especially where salt water was involved. My wife had seen a Dr. OZ show on tv while we were at the beach house and he and a whole panel of exercise/running pro's had indicated the gel antiperspirant and possibly/probably solid stick worked exceedingly well. Side benefit, single stick could be used for arms as well, Love the multi-purpose gear!