Corduroy-style collar. Features a cat-shaped safety buckle. Feels a bit stiff. Adjustable from 20 to 28 centimeters. The overlapping fabric creates some thickness, so when shortened, the shape might not be perfectly round... I think it should be fine once it's on the neck. My cat tends to get bald spots from collars, so this fabric doesn't seem suitable, and I've decided not to use it. I bought it online, and the fabric was different from what I expected (´・ω・｀) The texture isn't rough, so I think it would be recommended for cats that don't easily get bald spots from collars. Why not give it a try?(*´ω｀*) If you buy it together with the pink color, I'll sell them both for 450 yen!!