Not literally thankfully! Felt a bit weird going out for a hack with 'nothing on' as it were as I'm so used to putting my BP on before a hack. After a while though it all felt normal and you honestly can't tell your wearing anything, have to say it feels very liberating, nice not to be trussed up like a turkey, the only downside at this time of year is it's flippin chilly brrrrr but all in all I love it and I didn't forget to unclip when I got off either just wish I had bought one earlier now. No more chaffed under arms in the summer for me (the velcro on my BP is horrible for that)