Kolossus K9 Sport Sack: X-Large Dog Carrier & Hiking Pack for 23-25” Dogs


✅ Editor’s Pick


🌲 Outdoor & Adventure


🐕 Trail & Travel Ready


🧱 Durable Build

🌲 K9 Sport Sack Kolossus – X-Large, Black – The Big Dog Backpack – Ideal for Dogs 23-25” Long – Fully Adjustable Pet Carrier – Doubles as a Professional-Grade 60L Hiking Pack — Outdoor Dog Gear Review & Current Price

This review focuses on outdoor usability, comfort, durability, and performance in real conditions—ideal for adventure-focused dog owners
who hike, camp, travel, or spend time on trails.

🧭 How This Outdoor Gear Was Evaluated

  • 🧱 Durability (materials, stitching, closures)
  • 🌧️ Weather readiness (water resistance, drying speed where relevant)
  • 🐾 Comfort and fit during movement
  • 🎒 Practical use outdoors (setup, portability, packability)
  • 🧼 Cleaning after mud, dust, and trail use
  • ⚖️ Value compared with similar outdoor dog gear

📸 Product Images

Kolossus K9 Sport Sack: X-Large Dog Carrier & Hiking Pack for 23-25” Dogs

🏕️ Best Use (Outdoor Scenarios)

  • 🥾 Hiking trails, parks, and nature walks
  • 🏕️ Camping trips and outdoor weekends
  • 🌊 Beach days, lakes, and adventure travel
  • 🌧️ Mixed weather use (where relevant)

💰 Current Amazon Price

🛒 Price:
$269.95
🕒 Updated: Dec 20, 2025 22:25:42 UTC ·

Price & availability details


View current price on Amazon

📦 Amazon listing shows size options, materials, and recent outdoor use photos.


⚙️ Outdoor & Adventure Overview

🌲 Primary Use Outdoor adventures and active dog outings
🧱 Durability Built for repeated outdoor use (model dependent)
🌧️ Weather Readiness Designed for outdoor conditions (varies by product)
🐾 Comfort Fit and comfort for movement and activity
🧼 Cleaning Easy maintenance after trail use (model dependent)


🌟 Pros & Cons

✅ Pros

  • 🥾 Practical for hikes and active outings
  • 🧱 Built for repeated outdoor use (model dependent)
  • 🌧️ Handles mixed outdoor conditions (varies by product)
  • 🧼 Easier cleanup than many basic options
⚠️ Cons

  • 📏 Fit/compatibility depends on dog size and product dimensions
  • 🏕️ Some outdoor features vary by model and size


📝 Product Details

Product description

K9 Sport SackK9 Sport Sack

K9 Sport SackK9 Sport Sack

The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked. How to measure your dog Merchant Video

K9 Sport SackK9 Sport Sack

How To Use – Getting Your Dog In Getting your dog in - STEP 1Getting your dog in - STEP 1 STEP 1

Have your dog sit on top or to the side of the opened backpack.

Getting your dog in - STEP 2Getting your dog in - STEP 2 STEP 2

Place front paws through the leg openings, clip the carabiner to the collar/harness, then secure the collar enclosure.

Getting your dog in - STEP 3Getting your dog in - STEP 3 STEP 3

Zip the bag and thread the buckle through the zipper loop. Tighten lumbar and shoulder straps as snug as possible.

Getting your dog in - STEP 4Getting your dog in - STEP 4 STEP 4

Adjust and buckle the sternum strap and waist buckle if needed. Enjoy the Ride!

Carriers

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Customer Reviews

4.2 out of 5 stars 1,197

4.2 out of 5 stars 20

4.4 out of 5 stars 2,952

4.3 out of 5 stars 181

4.3 out of 5 stars 2,255

4.3 out of 5 stars 158

Price

$49.95$49.95

$149.95$149.95

$99.95$99.95

$94.95$94.95

$174.95$174.95

$264.95$264.95

Weight Capacity

15 lbs maximum

30 lbs maximum

25 lbs maximum

35 lbs maximum

35 lbs maximum

50 lbs maximum

80 lbs maximum

Functionality

Training & daily use

Airline approved carrier

Walks, hikes & bike rides

Dog and human use

Heavy and strenuous activities

Made for all environments

Made for all environments

Ideal For

Smaller breeds

Small to med. size breeds

Small to med. size breeds

Small to med. size breeds

Small to med. size breeds

Small through large dogs

Medium to large dogs

Available Sizes

XS, S, M, L

XS, S, M

XS, S, M, L

XS, S, M, L

S, M, L

XS, S, M, L, XL

L, XL, XXL

Breathable Material

Product Dimensions ‏ : ‎ 12 x 11 x 27 inches; 4.5 Pounds
Item model number ‏ : ‎ ROV2-BLK-XL
Department ‏ : ‎ unisex-adult
Date First Available ‏ : ‎ February 16, 2021
Manufacturer ‏ : ‎ K9 Sport Sack
ASIN ‏ : ‎ B08WR4ZBGQ
Best Sellers Rank: #75,980 in Pet Supplies (See Top 100 in Pet Supplies) #173 in Dog Carrier Backpacks
Customer Reviews: 4.3 4.3 out of 5 stars (158) var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
DOG CARRIER + HIKING PACK – When you’re not carrying your four-legged friend, Kolossus doubles as a professional-grade hiking pack with 60L of storage. Whether you’re heading into the wild or taking on city streets, you’ll be ready for adventure!
FIND THE RIGHT SIZE – The X-Large is best for dogs with a length of 23-25” from collar to the base of the tail. Typical dog breeds that will fit this size backpack include Doberman, Golden Retriever, Husky, Boxer, Standard Poodle & Vizsla.
MAXIMUM COMFORT – This backpack carrier is engineered for ultimate comfort, with adjustable shoulder and torso sizing to match any body type, an internal aluminum frame for support, a padded back panel, and a padded waist belt.
AMPLE STORAGE – Kolossus features a removable storage bag, two side pockets for water bottles, a large pocket at the base & a waste bag dispenser in the hip belt. Gear loops on the bottom of the carrier can be used to attach additional loose items.
MADE TO LAST – Thanks to premium materials and advanced construction, our design is built for long-term, rugged use—so you and your pup can enjoy it for years to come!

🏁 Final Assessment

For outdoor & adventure use, this product fits dog owners who spend time on trails, camping trips, and active outings.
It performs best when sizing is correct and the feature set matches the environment—such as durability for trail use, comfort during movement,
and easier cleanup after outdoor conditions.

  • ✅ Best match: active dog owners and outdoor travelers
  • ✅ Best use: hikes, parks, camping, weekend adventures
  • ✅ Priority features: durability, comfort, easy maintenance


❓ FAQ: Outdoor & Adventure Dog Gear

Is this suitable for hiking and trails?

Yes. Products in this category are designed to handle outdoor routines such as trails, parks, and active outings.

Does sizing matter for outdoor use?

Yes. Proper sizing improves comfort and helps the product perform as intended during movement.

How easy is it to clean after outdoor trips?

Cleaning depends on the model, but outdoor-focused gear typically uses wipeable materials or removable pads for easier maintenance.



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Prices and availability are subject to change.

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