Customer Reviews

Based on 70 reviews
Molly Blakemore
Did not fit still had to pay “handling fee”

I measured my dog for the xxl and he’s 29 inches long and he weighs 80 pounds so he should’ve fit inside the kolossus however he didn’t not even close and I have to pay for shipping and a $10 handling fee. Beware this backpack does not fit big dogs.

Justin Spence
Awesome pack!

You guys thought of everything!!

Kevin Ward
Large dog backpack works!

Finally found something to take my dog with me on my Harley. He absolutely loves the experience. The Kolossus K9 Sport Sack (X-Large) fits my 55 lb mix breed chocolate lab / Australian shepherd perfectly.

Jeffrey Jordan

Backpack sits to high on shoulders even at tis lowest setting . Center of gravity is to high making my dog who is only 20 lbs very unwieldy

A beautiful option for dogs with disabilities

My review is a bit unique in that I didn’t get this rucksack to give my dog a break or for an ageing dog… I’m fostering a puppy that was scheduled for euthanasia because he was overbred (blue nose pit) and ended up having congenital bilateral elbow luxation. We waited for 2 months to see a specialist at UC DAVIS just for them to say they can’t help him. He army crawls everywhere which is adorable but hurts him tremendously. This little guy has such an incredible spark and will to live that I wanted to give him the life he’s fighting for. They advise you to wait until the dog is full grown before buying their product but I wanted him to get used to it young, to associate the backpack with freedom and no pain, and to be honest, I don’t know how much time he has so I bought the colossus and the booster pad so we could get to living! He is 40 lbs and so long! He fits the size well with the booster and is so calm when we walk. I’m going to walk with him a few times a week to build up my own strength because his weight will probably double to 80lbs. I would gladly break my back to help him have the life of adventure he deserves. We all deserve that chance. Anyhow, I’m working out some ergonomic fitting issues with the strap tightness and him liking to shift his weight but it isn’t too bad! I’m stoked to have the opportunity to do this, and it was worth spending money I don’t have to make it happen.

Wholesale Order Form

Size Color Price Quantity
Large (20"-23" from collar to tail) Myrtle Green $358.95
Large (20"-23" from collar to tail) Black $358.95
X-Large (23"-26" from collar to tail) Myrtle Green $365.95
X-Large (23"-26" from collar to tail) Black $365.95
XX-Large (26"-29" from collar to tail) Myrtle Green $372.95
XX-Large (26"-29" from collar to tail) Black $372.95