K9 Sport Sack Plus 2 Dog Carrier with Removable Storage Gray Small 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. Features 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