It all started when we found a tiny dog in a dumpster. We wanted to take her on our adventures but she would get tired or was just not fast enough to keep up. We tried every carrier on the market and none did exactly what we wanted so we made our own. K9 Sport Sack sells the worlds #1 dog carrier backpack. Enjoyed by over 40,000 pets and their owners. It's our mission to bring pets and their owners closer. Our product allows dogs and puppies to come along on adventures never before thought possible![URL=https://www.k9sportsack.com]backpack to carry dogs[/URL]