Big dog. Big adventures. No compromises. The K9 Sport Sack Kolossus is the extra large dog carrier backpack built specifically for large and tall breeds who have outgrown standard carriers and for owners who refuse to leave them behind. The front-facing design keeps your dog close to your center of gravity for better balance and deeper bonding on every hike, bike ride, city walk, or commute. When your dog isn't riding, the Kolossus converts to a full 60-liter gear pack. Built from durable 300D ripstop Oxford polyester in stealth black that hides dirt and scuffs, this is the carrier that goes everywhere you do.
Built for Big Dogs. Engineered for the Long Haul.
- 🐕 Front-Facing Design for Large & Tall Breeds - Keeps your dog close to your body and center of gravity for better balance, stability, and bonding on the trail
- 🏟️ Wide Structured Base - Supports your dog's hips and spine in a natural, comfortable position during extended carries
- 🌬️ Ventilated Sides & Breathable Material - Keeps large dogs cool and comfortable on warm-weather hikes and active outings
- 🏎️ Ergonomic Padded Shoulder Straps & Sternum Strap - Adjustable for all body types; designed for all-day carrying comfort even with a large dog on board
- 🔒 Safety Collar Clip & Secure Zippered Closures - Multiple escape-prevention features keep your dog safely contained on the trail
- 🎒 Converts to 60-Liter Gear Pack - Multiple storage pockets for treats, leash, phone, and water bottle; full 60L capacity when your dog isn't riding
- 🧵 300D Ripstop Oxford Polyester - Durable, dirt-hiding black fabric built for rugged use across all terrain and conditions
- 📏 3 Sizes: L, XL & 2XL - Reference the size guide to find the right fit for your dog's weight and dimensions
Leave no dog behind. Order the K9 Sport Sack Kolossus today and take your big dog on every adventure they deserve.
Enjoy $6.95 flat rate shipping on all domestic orders. Returns are accepted within 30 days if items are in original condition. Some items like beds, clothing, food, and custom products are non-returnable. For more details, visit our Shipping Page.
