It's the soreness, itching and redness in the butt zone that's caused by fabric, friction and sweat in the seat area. In 2003, a couple of dedicated dirt bike riders invented the Anti Monkey Butt powder formula, which contains calamine and talc, to absorb sweat and reduce frictional skin irritation anywhere. You can use original Anti Monkey Butt to protect you from a multitude of skin irritations like blistering feet, between skin folds, where sports pads rub against your skin and more. Great for any activity from cycling, truck driving, horseback riding, hiking, attending festivals or any indoor/outdoor activity where you need to keep that swampy, monkey butt feeling from ruining your day. Anti Monkey Butt anti-friction powder is a rare breed because it contains calamine. It works to reduce sweat, chafing and aids in healing.