As requested by many customers, Doggie Design has created a Chest Extension Strap for the Alpine All-Weather Coats. With 3 inches of reflective webbing and the buckles, your dog will enjoy an extra 5 inches in the girth area for a more comfortable fit for broad-chested dog breeds. The Chest Strap Extension comes in two sizes to cover all of the Alpine All-Weather Coats from XS through 5XL. For even more room, multiple straps can be used together. Sold individually.