Extra Small reccomended for small dogs and cats
small is reccomended for dogs around the size of a corgi to a little bit bigger than a cat
Medium is reccomended for dogs around the size of golden doodles
Large is reccomended for dogs around the size of german shepards, huskys, golden retrievers
Extra Large recoomened for large daogs like large huskies etc.
If you have any questions about sizing just email me.