I actually bought this for a different purpose. I needed something to cover my port and keep the area protected while I do a full-contact sport where I get a lot of chest contact, and these work great! I’m sensitive to most adhesives, but I haven’t had any reaction to these and it stays put for over an hour of sweating. I also appreciate that the adhesive comes off of the cover itself easily, so I can reuse them with KT tape. Not the intended use, but perfect for what I need!