Kolossus | Big Dog Carrier & Backpacking Pack
For Dogs Ranging 20-80 lbs (9-36 kgs)
50-60 liter capacity
Completely redesigned in appearance, construction, and functionality, the Kolossus, formerly known as the Rover 2, is THE big dog backpack carrier that now doubles as a backpacking pack. It is ideal for carrying medium to large dogs and available in sizes L-XXL. Kolossus technology is top of the line in pet/human safety and comfort. Adjustable shoulder/torso sizing makes this backpack more suitable than ever for all body types (as long as you can withstand the weight). When you’re not carrying your 4-legged friend, the backpack easily converts to carry your gear with up to 60 liters of space. Use this backpack for strenuous hikes, bike rides, and public transit.
- Backpacking Pack Conversion
- Adjustable Shoulder/Torso Height
- Removable Lap Belt with Hip Pockets & Waste Bag Dispenser
- Internal Frame with Inner Padding for Dog Comfort
- Padded Back Panel with Increased Airflow
- Removable Storage/Dog Back Support Pack with Hydro Port
- Weight Distribution Straps
- Side Cooling Venting Zippers
- Wide Base to accommodate your pet and its tail
- Detachable Dog Sun/Rain Hood
- Dog Lumbar Support Straps
- 300D Ripstop Oxford Polyester Material
- Matching Hook & Loop Strip for Custom Patch
For dogs ranging 20-80 lbs (9-36 kgs).
Measure collar to base of tail.
L: 20-23in (51-58cm)
XL: 23-26in (58-66cm)
XXL: 26-29in (66-74cm)
Click here for more sizing help.
All K9 Sport Sack carriers are specially developed under the close direction of animal professionals, veterinarians, dog trainers, and outdoor product engineers to be ergonomic, safe, and strong.
Buy It With
I have a 59 pound Belgian malinois and she loves it… can’t wait to use mine. Fits her perfect. And she lays in it to be bundled up.. very sturdy and has good options.
Well made! Could use a fold out kickstand like a carry golf bag to make it easier to get on your back once mounted! Still training my girl so she can go out on the motorcycle!
We enjoy every bit of this backpack. Ride a grom and my gs rides in the back with the goggles. Huge fans of the backpack. Designed really well and durable. Makes life more unique
I got this pack to have as a precaution, as my senior GSP Olive has deteriorating hips and has been struggling to get through our longer hikes, but I couldn’t imagine leaving her home. She has always been trusting and laid back, but I did not expect her to be as comfortable as she was on our first longer session in it. Within 10 minutes she had her head on my shoulder and was falling asleep. We have some kinks to work out as far as fit goes for her and myself, but I can see this keeping a lot of doors open for us as time goes on.
I love how adjustable the pack is and as someone who is new to carrying so much weight on my back, it is surprisingly comfortable.
I do wish there was a way to prop the pack upright while loading up; as an often solo hiker, getting her on to my back has been a struggle but I’ve slowly been finding a way.
I’m looking forward to continuing to explore with Olive thanks to you guys, and I think she’s happy with it too.
Thank you so much!
My original shipment said delivered but I never actually received it. I believe it was stolen, and K9 SportSack shipped me another immediately. Extremely pleased with the backpack and the customer experience. I have a 75lb Rottweiler and she fits great!