Action Factory Swim BriefsThe Action Factory Swim Briefs. No one ever tells you when your man pickle is board short vacuum sealed to your leg when you get out of the water. Avoid the embarrassment with AF Swim Briefs. The Action Factory Swim Brief is intended to be worn under your board shorts to hold you in place and dry quicker than cotton underwear so you minimize the risks of monkey butt. Additionally its perfect under a wetsuit because it doesnt bunch and its a stand