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K9 Sport Sack Plus 2 dog carrier backpack with storage bag – last units in size L
The K9 Sport Sack Plus 2 is being phased out. We have a limited number left in size L, for dogs 51 to 58 cm long, in Light Grey and Summer Mint. While stocks last.
Is your dog smaller, or are you looking for another colour? The K9 Sport Sack Kompanion is the successor to the Plus 2: sizes S to L, more padding, a removable hip belt and the Pro System for storage bags. Compare all models on the K9 Sport Sack page.
Is size L right for your dog?
Measure your dog from the collar to the base of the tail. At 51 to 58 cm, size L is the right size. If your dog is around 51 cm or slim, place a K9 Sport Sack Booster Block in the bottom: it raises the base by 7.6 cm. If your dog is shorter than 51 cm, choose the Kompanion in the matching size.

Features
- Detachable storage bag (35.5 x 22.8 cm) for treats, water or your own gear; the bag also supports your dog's back and keeps it close to yours
- Thicker, wider, pressure-relieving shoulder straps
- Padded back panel for more comfort with a heavier dog and on longer outings
- Ventilated side panels and adjustable dual mesh side pockets
- Adjustable side and back cinch straps for the best fit
- Adjustable collar enclosure
- Fur flap: no more dog hair caught in the zipper
- Wide base for your dog and its tail
- Whistle clip on the sternum strap
- Hook-and-loop panels for K9 Sport Sack patches
- Size L: 51–58 cm, measured from the collar to the base of the tail
Make your Plus 2 unique
Put a K9 Sport Sack patch of your choice on the hook-and-loop panels, from a funny quote to a practical warning.



Carrying your dog safely and comfortably
K9 Sport Sack had the ergonomics of the original design reviewed by a vet. Tighten the shoulder straps so your dog's head sits above your shoulders. K9 Sport Sack recommends carrying your dog for 30 to 45 minutes at a time.


FAQ
How do I determine the right size for my dog?
Size is determined by the length of your dog's back (from the collar to the tail). The Plus 2 comes in various sizes. Your dog must be able to sit upright comfortably. If you are between sizes, we recommend sizing up; you can use a booster block to ensure your dog sits at the correct height to look over your shoulder.
What is the difference between the Plus 2 and the Air 2?
The Plus 2 is an upgraded version of the Air 2. The main feature is the detachable storage bag attached to the back, perfect for carrying essentials. It also offers enhanced comfort with a padded back panel and thicker shoulder straps for longer adventures.
What is the weight limit for the Plus 2?
The Plus 2 is built for small to medium dogs with a weight limit of up to 18 kg (40 lbs). The side cinch straps and reinforced stitching ensure your dog remains stable and secure during travel.
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