I had the black version from bol.com for 4 years . the breakout works well, it's firm, not too loose. my cats lost the black ones a few times and they're hard to find in the bushes outdoors, so i've stepped to these bright colors from this seller. they're quite durable, i have three cats that wear these for 4 hours a day on average and there's just one where the reflector lining got loose a bit. i tore the reflector lining off and the color under that looks like it's brand new. the wear is really low. the air tags sit in fine, they've never popped out. i'm very pleased. happy cat, happy dad i guess.
