This site has limited support for your browser. We recommend switching to Edge, Chrome, Safari, or Firefox.

K9 Sport Sack® PLUS 2


The Plus 2 is a backpack dog carrier with a multi-functional storage pack. The storage pack is great for bringing gear, treats, or other necessities along on your adventures. It also acts as a support for your dog’s back, pulling your pup in snuggly against your back. Available in sizes S-L, its thicker shoulder straps and padded back panel allow for more weight and strenuous activities. The Plus 2 is our most complete carrier for small to medium sized dogs and fits dog owners small to large in build.

For Dogs Ranging 8-40 lbs (4-18 kgs)

Plus 2 sizing: S 13-17 inches, M 17-20 inches, L 20-23 inches

View More Sizing Instruction

  • Detachable storage bag (14"x9") Don't forget your gear!
  • Fully ventilated sides for maximum refreshing air flow
  • Padded back panel for increased comfort and cooling
  • Thicker, wider, pressure relieving shoulder straps
  • Mesh dual side pockets for increased ventilation
  • Ventilated cooling side panels
  • Adjustable dual side pockets
  • Sternum strap avalanche whistle clip
  • Newly added PLUS 2 features include:
  • Wide Base to accommodate your pet and its tail
  • Adjustable Side and Back Cinch Straps to ensure the best fit
  • Fur Flap (No more zipping your dog's hair in the bag)
  • Adjustable Collar Enclosure

Compare K9 Sport Sack Carriers

K9 Sport Sack® PLUS 2 Comparison

View Patent Info


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

    Customer Reviews

    Based on 495 reviews
    Perfect for my elderly dog!

    I’m an avid skating and my dog loves putting her face in the wind so taking her with me was definitely the most obvious thing to do! This pack is phenomenal and my dog can sit comfortable for nearly 3hrs before she needs to stretch her legs! I got a size S and my dog is 12lbs.

    Double dachshunds

    Our dachshunds are content and happy in their packs. They each have one.The shorter guy sits a bit lower, but he still loves it! Great for walking around beach cities and AZ because of the heat and hot sidewalks. Here’s two pictures of them both taking turns in their packs😊

    Second backpack, still amazing!

    Bought the Air2+booster for my dog when he was a puppy, and had to size up so we bought the Plus2 in a Medium. For ref: dog is a cavalier King Charles spaniel, 17-18lbs, forgot his exact length measurement but it came out perfect! Purchased it for a trip out to Sedona, AZ and used it once while out hiking. It was nice to have just in case, and the large zipped attachment was perfect for carrying all the little extra things. Could not recommend this more!

    I only wish there was some kind of attachment to add on, like a small zipped pocket that could be slipped onto the shoulder strap to better access my phone. Alternatively would be used as a treat pocket.

    Candace McIlvain
    Great Dog Pack

    I have not yet used my pack, but as soon as I received it I put my pup in to see how he would do. He did great getting in the first time and was completely content. Can’t wait to utilize this pack over the summer!

    Jennifer Hamilton
    Best product ever!!!

    I spent years looking for the perfect backpack for our handicapped dogs and this is it!! Every feature proves your number one concern is the safety and comfort of the dog. Can't wait to take my best bud, Teddi B, on more outdoor adventures!!!!

    ps- would love to see some type of umbrella or shade to keep the dogs cool in the summer someday.