Do you have a small dog? Do you love your dog? Do you want to do really cool things with your dog? Then look no further, this is the K9 Sport Sack. With the K9 Sport Sack – The Original Dog Carrier Backpack, you and your pet can now go on early morning bike rides, afternoon hikes, evening walks around the city and everything in-between. The K9 Sport Sack has features like side ventilation, keeping your pet cool. Adjustable straps, because no two dogs are the same. Water proof material, when things get a little rough. Bottom padding, for extra comfort on you and your dog. Side pockets, for snacks or a water bottle. Whatever it is you do, get your dog on!