Determining your dog's size for a K9 Sport Sack® is not an exact science. If your dog is in between sizes, has a wide body but is short in height, or is still growing, you can use the Booster Block on the bottom of your K9 Sport Sack. This gives your dog a 7.6 cm boost.

Functions

• Made of sturdy quality foam
• Removable, washable fabric cover
• Use two blocks for a six-inch lift

Dimensioning
XS/S measures 7.6 cm high x 20.3 cm wide x 12.7 cm deep, suitable for the K9 Sport backpacks XS and S
M/L measures 7.6 cm hhog x 25.4 cm wide x 15.2 cm deep, suitable for the K9 Sport backpacks M and L, can also be used with XL and XXL