I guess it depends on how tight you have it. i wear mine everyday. some people try assume it must be tight to work but that is not the case. not so tight its uncomfortable anyway. it did take me a couple days to get used to something new being there but now its just a part of me. if it pulls under your arms(i know what you mean) then loosen the paddles and give it another try. i made that mistake at first myself. nearly cut my circulation off. im glad i adjusted it and stuck with it.
Well i'll take it back if you hate it but they seem to be pretty hot on here for some reason if you dont want it im sure there is a happily waiting woman for one. i don't have many left and i'll be out.