Chest Back Reference
XS 30cm 20cm suit for dog 1-2kg
S 35cm 25cm suit for dog 2-3kg
M 40cm 30cm suit for dog 3-4kg
L 45cm 35cm suit for dog 4-5kg
XL 50cm 40cm suit for dog 5-6.5kg
1.If you measure the size,please relax 2cm.
2.Because the measurement of each person is different ,there maybe 1-2cm errors,please kindly understanding but products regardless of dog breeds and gender.