Sizing your dog for a K9 Sport Sack® isn't an exact science. If your dog is in between sizes, has a wide body but short in length, or is still growing, the Booster Block fits snuggly in the bottom of your K9 Sport Sack to boost your dog up 3." It helps make the K9 Sport Sack experience more comfortable for you and your dog.
Constructed of quality foam
Removable and washable cloth cover
Two blocks may be used to lift up to 6"
XS/S are interchangeable between XS and S sized backpacks
M/L are interchangeable between M and L sized backpacks
XL backpacks require an XL Booster Block
XXL Bags require an XXL Booster Block
Email: wholesale AT k9sportsack DOT com (you know what we mean) | Call or SMS: 385.241.6123
1603 North State Street, Lehi Utah 84043
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