These collars are suitable for most breeds apart from the toy breeds.
This width has a range of styles:
Single loop for smaller dogs that don't want the side release clip or for Sighthounds as a tag/house collar.
Martingale for smaller Sighthounds (Sighthound puppies, Italian Greyhounds or smaller Whippets) or other breeds as a half check safety collar for walking.
Side release or "clip apart" collars for all breeds. In this 25mm width the smallest size for a clip apart would be 13" neck upwards. For smaller sizes go for a 20mm side release as the clip is less bulky.
Please measure your dog mid neck in inches. See how to measure and important information about styles here: How to measure for your Kitsch Collar
All collars have satin linings. Christmas collars lined in velvet. All are washable at 40 in a machine. The fittings are solid brass. Super strong and tough for outdoor walkies. Go on, chuck that uncomfortable leather collar away!