Size: XS/S/M/L/XL/2XL

XS: 

Neck size 32-35cm, Chest size 36-42cm, Back Length 20cm. Fit For 1-6KG. 

S: 

Neck size 34-38cm, Chest size 44-54cm, Back Length 27cm. Fit For 6-8KG. 

M:

Neck size 43-50cm, Chest size 54-64cm, Back Length 33cm. Fit For 8-22KG. 

L:

Neck size 48-55cm, Chest size 62-74cm, Back Length 40cm. Fit For 22-28KG. 

XL:

Neck size 54-60cm, Chest size 72-81cm, Back Length 45cm. Fit For 28-40KG. 

XXL:

Neck size 62-70cm, Chest size 82-92cm, Back Length 50cm. Fit For 40-50KG.