X-Small - Waist Circumference: 32cm, Neck Circumference: 28cm, Body Length: 29cm Small - Waist Circumference: 36cm, Neck Circumference: 31cm, Body Length: 34cm Medium - Waist Circumference: 39cm, Neck Circumference: 36cm, Body Length: 37cm Large - Waist Circumference: 45cm, Neck Circumference: 40cm, Body Length: 44cmX-Large - Waist Circumference: 50cm, Neck Circumference: 43cm, Body Length: 48cm We recommend to measure your dog against these sizes and consider a bigger size up for a looser fit. This comfortable padded jacket/harness is the ideal accessory for those cold days when you need to take your buddy for a walk. Machine washable and available in a range of size, the jacket’s wraparound design helps to keep your dog’s belly from getting wet, muddy and cold. Combined with a superior metal D-ring on the back for easy lead-attachment, this great looking puffer jacket is perfect for any outdoor, winter excursion.