I have a thick neck, so I was worried about the collar fitting me, but it fits perfectly. The restraints and collar are both padded to make them super comfortable. I also love that the restraints look so sexy and the material is really nice. I felt submissive immediately as the collar was put around my neck. I felt so vulnerable and sexy in these restraints. They are good quality, and it has buckles to close them on nicely and tight. Even when I struggled some to see how much tugging it could take it held up very well. I had no issues at all.