I've bought this muzzle for my Newfoundland named Henry, who suffers from a chronic skin disease. He has to constantly wear a cone for dogs, so as not to lick and bite when it itches, which makes it difficult to walk around the house and drink. This muzzle is a discovery indeed, in comparison with all I used before even though more expensive. The design sits perfectly around his jaws, it's pretty light and ensures a perfect fit. Now we can leave him for a while, and he can walk around the house and what is more comfortably and easily drink water in the muzzle. Unfortunately we are forced to use the muzzle when he is alone. I recommend this muzzle. Make sure that you have made the correct measurements. I really thought of adding the measurements, but the muzzle itself already has enough space and as I said before it has a lot of straps to ensure a reliable and comfortable fit. I recommend a quick-release buckle as well.