
The do-it-all carrier for serious adventures, built around an internal frame.
The K9 Sport Sack Knavigate brings together the best of the whole range. Every size has an internal frame and a padded hip belt, so weight sits on your hips rather than your shoulders, making it the most comfortable choice for longer hikes and full days exploring. With five sizes from XS to XL it offers a choice of fits for dogs within its 22.7 kg (50 lb) capacity, and it's made to be durable and stable mile after mile.

Key Features
- 🐾Internal frame in every size - stable, structured support for the wearer and the dog
- 🐾Padded hip belt - shifts the load onto your hips for comfortable long-distance carrying
- 🐾Hip pockets and a large storage pocket running beneath the pet base for all your gear
- 🐾Dog lumbar support straps - keep your dog comfortable and well-positioned
- 🐾Five sizes (XS-XL) - the widest fit range in the range, subject to the 22.7 kg (50 lb) weight limit and correct fit
- 🐾Built for the outdoors - durable, stable and vet-developed
Getting the size right
Maximum dog weight: 22.7 kg (50 lb). This is the Knavigate model's capacity limit, subject to correct fit; it is not a weight-based size recommendation.
Check three things before choosing: weigh your dog; measure back length from the base of the collar to the base of the tail with your dog standing; and measure chest girth around the widest part of the chest, just behind the front legs. Use back length to choose your starting size, then check chest room and sitting height. Being below the weight limit does not guarantee a comfortable fit.
Between sizes or broad-chested? The manufacturer recommends sizing up where needed and using a suitable K9 Booster Block to achieve the correct sitting height. Ask us for help with your dog's back length, chest girth and weight before ordering if measurements fall between the ranges.
K9 Sport Sack carriers are sized by your dog's back length, so please measure before ordering.
1. Measure the back length from the base of the collar to the base of the tail, with your dog standing.
2. Match it to the size below. Your dog should sit comfortably with their legs through the openings. Between sizes? Size up.
3. Unsure? Watch the fitting video below or message us on WhatsApp with the back length, chest girth and weight.
🐾 Not sure which carrier to choose? Take our 60-second quiz
Choose by back length, not weight alone. If your dog is between two sizes, size up.
Sizing video
Every K9 Sport Sack is developed with vets, trainers and outdoor-gear engineers for an ergonomic, secure, strong fit. Introduce it gradually with treats and praise and keep early trips short. Questions or help with sizing? Message us on WhatsApp.