- Don't smash your junk at the beach! Set your "boys" free and give them the room they deserve with the new Big Boy Pouch Swim Square Cut. We are known for our big penis underwear and now we make Big penis swimwear. Our special pouch not only holds a heavy load but it also gives you a natural lift without any additional c-rings or lifters. This is definitely a "if you have it flaunt it" opportunity. You may never want to take it off.