K9 Sport Sack Kolossus Big Dog Carrier Backpack (L–XXL)

K9 Sport Sack® Kolossus – Big Dog Carrier Backpack (L–XXL) | Free EU Shipping

The ultimate carrier – built for medium & large dogs.

Newly redesigned, the Kolossus is THE WORLD'S BEST big dog backpack carrier that also doubles as a backpacking pack.

Ideal for carrying medium to large dogs with top of the line technologies in pet and human safety and comfort.

Adjustable shoulder & torso sizing for all user sizes and maximum comfort. When you’re not carrying your 4-legged friend, the backpack converts to carry your gear with up to 60 liters of space.

This pack is ideal for serious use in outdoor or urban environments.

The K9 Sport Sack® Kolossus is the ultimate backpack carrier for medium to large dogs (9–36 kg). Designed for maximum safety and comfort, it’s the premium choice for active dog owners.

✔ Fits dogs 9–36 kg (L–XXL)

✔ Capacity 50–60 liters – converts into a full-size backpack

✔ Adjustable shoulder, torso & body fit

✔ Internal frame + padded ventilated back panel

✔ Detachable hip belt with pouches & waste bag dispenser

✔ Colors: Myrtie Green & Black

✔ Free EU shipping

With features like a removable sun/rain hood, ventilation zippers, and weight distribution straps, the Kolossus is built for long hikes, biking, travel, and outdoor adventures.

In doubt between two sizes? Then order a size bigger for extra comfort. You can easily make up the difference in size with a booster, so your doggie is still sitting securely and safely!

Features

• 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

Make your Kolossus unique!

Did you know the Kolossus is equipped with hook-and-loop panels? Give your backpack its own character with our K9 Sport Sack Patches. From funny quotes to practical warnings: pimp your dog’s gear in a heartbeat.

Safety

All K9 Sport Sack carriers are specially developed under the close supervision of pet professionals, vets, dog trainers and outdoor product engineers to be ergonomic, safe and strong.