The Kolossus Big Dog Backpack Carrier has been completely redesigned for improved appearance, durability, comfort, and functionality. This premium dog backpack carrier also converts into a spacious backpacking pack, making it perfect for hiking, biking, travel, camping, and public transportation. Designed for medium to large dogs weighing 20–80 pounds (9–36 kg), the Kolossus is available in sizes L–XXL and offers a generous 50–60 liter storage capacity when used as a gear pack.
Built with advanced K9 Sport Sack technology, this large dog carrier backpack focuses on both pet and human comfort and safety. Adjustable shoulder and torso sizing provide a customized fit for a wide range of body types, helping distribute weight more comfortably during long adventures.
When your dog is not riding along, the carrier quickly transforms into a versatile backpack for carrying hiking gear, travel essentials, or outdoor equipment.
Features
Designed for dogs weighing 20–80 lbs (9–36 kg)
Converts from dog carrier to backpacking pack
Spacious 50–60 liter storage capacity
Adjustable shoulder and torso sizing for ergonomic comfort
Ideal for hiking, biking, camping, travel, and public transit
Engineered for maximum durability, comfort, and support
Safety
All K9 Sport Sack carriers are carefully developed with guidance from veterinarians, dog trainers, animal professionals, and outdoor product engineers to ensure ergonomic design, superior comfort, and dependable safety for both pets and owners.
