These singlets from Bumchums in Yorkshire are helping me to keep fit. I go to the gym and run in them, with nothing else on. Well,. exc ept for a cockring or two, which is quiet visible for anyone who cares to look that closely. A lot of people in the gym have seen me in them, which I find quite a turn on, which only makes my bulge bigger. And the more I sweat, the more see-thru they become.