<br>Size----Neck-------------Chest-----------Body <br> <br>XS------20cm/7.9inches------30cm/11.8inches----- 19cm/7.5inches<br> <br>S------24cm/9.4inches------35cm/13.7inches----- 24cm/9.4inches<br> <br>M------29cm/11.4inches------40cm/15.7inches----- 28cm/11inches<br> <br>L------32cm/12.6inches------45cm/17.7inches----- 34cm/13.4inches <br><br>XL--------35.8cm/14.1inches------51.8cm/20.4inches----- 39.8cm/15.7inches <br><br>Please CHECK dimensions carefully before you decide which size to buy.<br> <br>Size up if your pet's body length is longer than normal. <br>