leaking . Micropore Surgical tape lets your skin breathe and does not cause irritation . I was just swimming in the ocean , in very big waves , thrown around etc and my bag ( wafer )
was perfectly secure and lasted three more days . There are a few brands but it has to say
" 3M Micropore Surgical Tape "
Give it a try , let me know if it works ,All the best Eamon Moran