Zack & Zoey Nor' Easter Blanket Coats help pets take a bite out of nasty weather. Jacket features a reversible water-resistant shell, a soft plaid fleece lining and a reflective stripe and paw print detailing on back with neck and belly Velcro closures for adjustable fit. Comes in a polybag with a hanger and hangtag. Material: 100% polyester. Care Instructions: Machine wash cold on a gentle cycle. Line dry. Sizing Guide: Back: Measure length of pet's back from the base of the neck to the base of the tail. See below for estimating by breed. Neck: Measure the circumference of pet's neck for a snug fit. No need to add Inch as you would with a collar. Chest/Girth: Measure girth around the broadest part of the chest and add 2".Note: If the dog has a stout build, select one size -Small: Neck Measure 8"-10", Chest Measure 11"-13", Length 8"X-Small: Neck Measure 9"-11", Chest Measure 15"-17", Length 10"Small: Neck Measure 10"-12 1/2", Chest Measure 16"-18", Length 12"Small/Medium: Neck Measure 10"-14", Chest Measure 18"-22", Length 14"Medium: Neck Measure 13"-16", Chest Measure 20"-25", Length 16"Large: Neck Measure 15"-18", Chest Measure 24"-30", Length 20"X-Large: Neck Measure 20"-24", Chest Measure 29"-36", Length 24"XX-Large: Neck Measure 22"-26", Chest Measure 32"-41", Length 30".