Made from Polartec® Thermal Pro® fleece with Polartec® and Power Stretch®. Your dog will be stylin' in our warm, wind-resistant, lightweight coat. The underbelly of our jacket is made from Malden Mills Power Stretch, a 4-way stretch body huging fabric that ensures a great fit for dogs of all shapes and sizes. Machine Washable. For sizing measure your pal from base of neck to tail.