Length: This size works best with noses between 3” and 3.5”. Depending on your dog's  length, you may need to modify your muzzles noseband. A smaller/bigger measurement will also  work in some situations.

Width: This size usually works best with widths between 2” and 2.75”. This measurement is a bit  more relaxed but wider is better than narrower. Most muzzles will need some amount of squishing  over the nose, which is why width is more relaxed.

Muzzle Height: The DAL5 has a front height of 4”. We always size to a full pant or height accurate  to a full pant. If measured correctly, this should fit well. Depending on use, sometimes it can be  slightly over the measurement where full pant isn’t needed. It’s also fine to be slightly under the  height too.

Other measurements: If your dog is on the shorter end of length, the chin length may end up  being long, which usually needs different modifications. The only way to tell if this will be an ‘issue’  is to try the muzzle out, most of the time it still works good.

• If your dog is in between sizes we will likely give you two or more options. Please see the other  links (if there’s any) for information on size.