Small: Waist Circumference: 32cm - 45cm, Neck Circumference: 33cm - 38cm, Coat Length - 38cmMedium: Waist Circumference: 43cm - 51cm, Neck Circumference: 35cm - 40cm, Coat Length - 42cm Large: Waist Circumference: 51cm - 57cm, Neck Circumference: 38cm - 43cm Coat Length - 46cm X-Large: Waist Circumference: 53cm - 62cm, Neck Circumference: 42cm - 47cm, Coat Length - 50cm XX-Large: Waist Circumference: 58cm - 66cm, Neck Circumference: 45cm - 52cm, Coat Length - 54cmXXX-Large: Waist Circumference: 63cm - 71cm, Neck Circumference: 50cm - 56cm, Coat Length - 58cm We recommend to measure your dog against these sizes and consider a bigger size up for a looser fit. If you want to protect your dog from the elements but also desire something a little distinguished, this Sherpa waterproof dog coat is the thing you’ve been looking for. Designed using a water-proof polyester to keep the rain out, the soft fleece inner helps to keep your furry friend comfortable while on their travels. Machine washable up to 30 degrees C and 800RPM, this waterproof coat features reflective strips for extra visibility on those darker days as well as an adjustable collar and adjustable straps to ensure a snug fit.