I have to use rolled leather collars on Grace our Minature Schnauzer as her coat gets matted easily around flat collars. I found some on Amazon sold by Dogline - Soft Padded Rolled Round Leather Collars and I ordered one. They come in beautiful colors and are as light as air- not stiff like the other rolled leather collars I have had. I got the red and Grace looks great in it. I cant get over how soft and light it is and I think it will be much more comfortable for her. I highly recommend them. Just want to share.