Unlike other coats, the Elasto-fit® design is made to hug your dog. Please expect a snug fit for extra warmth, as the elastics follow your dog's movements and expand for security and comfort. 

1. Back length — Measure the length of your pet's back from the base of the neck all the way to just above the top of the tail. 

2. Chest Girth — Measure the chest around its' widest point. 

Pick the closest combination of measurements to match your dog's unique shape. 

When in doubt, please choose the larger size.