We love the durability and warmth of this verstile dog jacket. The Muttluks Belted Dog Coat in Black features three layers of warmth and versatile fit. The nylon exterior with lofty inner core and faux sherpa interior will protect your dog's tender skin from bitter cold. With fourteen sizes, this coat for dogs is versatile enough for most breeds. Button closure at neck, and belted with adjustable strap and durable plastic buckle on the belly. Chest piece keeps it all together and adds extra warmth and coverage. Elastic back leg straps. Machine washable. Important Sizing Note: The following measurements are the dimensions of the actual product, not of the pet they fit. After measuring your pet, make sure all measurements fit within the following dimensions (with a little room to spare in the chest and neck). Size 8 Back Length: 7" Chest: 15" (Most Important) Neck: 10" Size 10 Back Length: 9.75" Chest: 18" (Most Important) Neck: 11" Size 12 Back Length: 10.75" Chest: 19" (Most Important) Neck: 13" Size 14 Back Length: 13.75" Chest: 22" (Most Important) Neck: 17" Size 16 Back Length: 14.75" Chest: 25" (Most Important) Neck: 16" Size 18 Back Length: 16.5" Chest: 28.5" (Most Important) Neck: 18" Size 20 Back Length: 19.5" Chest: 31" (Most Important) Neck: 19.5" Size 22 Back Length: 21.5" Chest: 32" (Most Important) Neck: 20" Size 24 Back Length: 23.5" Chest: 34" (Most Important) Neck: 21" Size 26 Back Length: 26.5" Chest: 35" (Most Important) Neck: 23" Size 28 Back Length: 27.5" Chest: 37" (Most Important) Neck: 24" Size 30 Back Length: 29.75" Chest: 40" (Most Important) Neck: 25"