Thank you for the muzzle for my mongrel Border Collie. It fits ideally. There is enough free space in the muzzle and he can drink and eat treats. I use this muzzle only when I need to go to shop and to leave the dog alone outside for a while or when we use public transport. We bought another one muzzle for our Northern Inuit Dog earlier. The both are comfortable and fit perfectly. Here are the photos...