- Convert your ThinLine Hunter pad with the Booster shim. Then you and your horse can enjoy the benefits of the ThinLine+
Medium: 23.5″ – 59.7 cm total length | 17.5″ – 44.5 cm spine length | 18.5″ – 46.9 cm flap width
Large: 27″ – 68.6 cm total length | 19″ – 48.2 cm spine length | 20.5″ – 52.7 cm flap width