Mine are all little nudists. Champ is too handsome to have a kink in his neck fur! same with Grissom. Annie never ever got used to hers and walks funky with one on if I don't take it off after our walk, and Chesney is just a nakie little puppy! Having multiple dogs, I don't like them playing, especially unattended, with collars on. I've seen too many daycare dogs get their mouths stuck, one even broke his jaw. Mine are all microchipped (AND properly registered with Avid or Home Again) so I just don't feel the need to keep ID tags on them. If they were found, they're obviously someone's pet and any vet or shelter can scan for a chip.