Um well, like wearing down the fur? or actual red on the skin?
The nylon ones I tried had rough spots where they were stitched, like where the buckle was stitched on and the fabric was folded and stitched down, plus the end of that fabric had been melted to keep it from fraying. It was itchy on my dog and she has lots of fur to protect her, plus she wears her collars loose so it didn't really even touch her.
Solution? We have a "fake leather" nylon collar made for hunting dogs
. It's made of a poly plastic, in hunter orange, and it's rivited down with smooth flat rivits instead of sewn. It also has one of those safety rings in the middle, and I find that's actually more handy for attaching leashes than the usual D rings. I got it from TSC. and the brand is Remington.
Some people like rolled leather collars, supposedly they do less damage to the hair. There are also "fur saver" chain collars, but they function like choke collars. If I were to get one of those I would lock the ends together so it couldn't tighten. I just perfer the 1" hunter orange collar because it's high visibility, even though it does smoosh down the hair.