Backpack dog carrier with a multi-functional storage pack for Dogs Ranging 8-40 lbs (4-18 kgs). It acts as a support for your dog’s back, pulling your pup in snuggly against your back. Its thicker shoulder straps and padded back panel allow for more weight and strenuous activities. Detachable storage bag (14"x9") 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 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 Used once to try on, but it doesn't fit my pup. No tags.