When I first started using my freestyle Libre, I would use tegaderm to try to keep it on my arm as I sweat a lot. Once I started using your product, my sensors would last the full 15 days instead of a few as I walk by a wall and walk into it a little and knock my sensor off. I always get five of a kind so that if part of it lifts up I can match it with what I have left to keep it looking nice and safe.