For a limited time only, the Essential Dog Hoodie is here to keep your pup warm and stylish for the chilly months ahead. Clean when worn by itself, and dangerously stylish when paired with a set of RIFRUF® sneakers. Size Guide: Please refer to the size guide provided in the product images to find the best fit for your dog. Size guide instructions: 1. Measure around the thickest part of your dog's neck, just above the chest. 2. Measure around the largest part of your dog's chest, just behind their front limbs. 3. Measure from the base of your dog's neck (right below where their collar would sit) all the way to the start of their tail.