K9 Sport Sack Kolossus

Bring the big adventures back within reach.

The Kolossus is a structured carrier for medium and large dogs, built for hikers and travellers who want a more substantial system for the longer road. When your dog is on their feet, it converts into a roomy backpacking pack for the rest of the day’s gear.

Built for bigger companions
• Manufacturer fit range of 20–80 lb (9–36 kg), across sizes L–XXL
• Adjustable shoulder and torso sizing for a more personal carry
• Converts to a 50–60 litre backpacking pack when your dog is not riding
• Designed for hiking, bike travel, and transit when used as directed

Fit both of you
Use the manufacturer’s measurements—not weight alone—to choose the right size. Check your dog’s back length and natural seated position, then make sure the torso and straps can be adjusted securely for you.

Know your limits
A larger dog plus carrier can be a significant load. Start with short sessions, check the fit before each outing, and choose the distance, terrain, and weather around your dog’s comfort and your ability to carry safely.