<p><b> Why own a K9 Sport Sack Dog Carrier? </b></p> <p>The K9 Sport Sack Dog and pet carrier backpack was created so we never had to leave our dog behind ever again! We want to be able to take our dogs where ever and when ever! K9 Sport Sack was created by dog owners, for dogs and owners - to explore, travel, have fun, and grow closer all while being safe, comfortable and easy. </p> <p> The K9 Sport Sack AIR is the original forward facing dog carrier backpack that doubles as a small to medium-sized dog airline friendly pet carrier. It’s super safe for your pup, comfortable for you, built to last, and guaranteed to turn heads!</p> <p>We love what we do, and nothing makes us happier than seeing happy dogs and happy owners getting around in the K9 Sport Sack. -Team K9 Sport Sack</p> <p><b>FEATURES: </b> </p> <p>-VETERINARIAN APPROVED</p> <p>-Fully ventilated sides </p> <p>-Safety D-ring for collar hook-up </p> <p>-Adjustable dual side pockets </p> <p>-Mesh lined Foam-Tek slotted shoulder straps to keep you cool and comfortable </p> <p>-Upgraded easy-pull zipper </p> <p>-K9 Whistle Clip on sternum strap </p> <p>-Velcro soft side for custom name tags, safety lights etc. </p> <p><b>SIZING: Measure from collar to floor in begging position (see image for dog measuring example)</b> </p> <p>X-SMALL 10-13 inches: 5-8lbs</p> <p>SMALL 14-17 inches: 8-14lbs</p> <p>Medium 17-20 inches: 13-20lbs </p> <p>Large 20-23 inches: 20 up to 35lbs</p>