Need some tips on how to keep a Dexcom on during swim practice. Carson joined a swim team this fall and is swimming a lot of backstroke. Both Monday night and tonight the Dexcom that he wears on the back of his arm got caught on the lap lane and ripped off. I can see how easily it happens with backstroke. Does anyone have any tips on something he can wrap around it to keep it from getting caught? He wore a compression arm sleeve over it a few years ago for football, but it's too long for swimming. Would athletic tape stick?