They are comfortable and seemed like they would stay on, and didn't tug skin or *anything* when I peeled them off...BUT! Instead of poking nipples I saw the flower-shaped outline and an even worse circle inside. VERY noticeable even under a shirt with which I could go bra-less without nipple showage. Would NEVER work under something sheer (like most new *affordable* t-shirts are made, perhaps it's the recession) as opposed to merely clingy.I also see there's a new re-usable version, which these seem not to be. However, when I misplaced one on, I was able to pull it off and immediately re-stick it correctly.