Let me start by saying these nipple covers have been a game-changer for my strapless dress collection. The seamless coverage is legit - I wore them under a bodycon dress for a wedding, and not even my date noticed I wasn't wearing a bra!
The adhesive is strong enough to survive a sweaty dance floor (tested personally during 3 hours of non-stop dancing), yet removes painlessly. I've reused mine about 5 times now with no loss of stickiness - just wash with mild soap and let air dry.
However, they're not perfect. While the nude shades blend well, you CAN see slight outlines under very thin, light-colored fabrics. Also, the cone-shaped nipple effect is real - not super noticeable under clothes but definitely there when naked.
Storage tip: Keep the original plastic protectors! I learned this the hard way when one folded onto itself and became unusable. The included satin pouch is cute but doesn't prevent sticking.
For larger chested girls (I'm a D cup), they provide surprisingly good coverage and lift. But if you're looking for serious support or sweatproof performance during intense activity, these might disappoint.
Final verdict: Perfect for special occasions or casual wear when you want to go braless comfortably. Not ideal as an everyday bra replacement or for high-intensity activities. Worth the investment if you take proper care of them!