K9 Sport Sack Air Backpack Carrier was created by dog owners, for dogs and owners, so that humans and dogs can do more together. It's the safest, most comfortable and easy to use backpack carrier we've ever seen. Strap it on and bring your pup anywhere you go...hiking, trekking, biking, shopping...the possibilities are as varied as your imagination for adventure!
For best sizing, measure length from collar to floor while dog is in the upright "begging" position (see image). And for smaller/shorter pups, consider adding one or more K9 Booster Blocks.
Extra-Small: 10-13 inches from collar to floor
Small: 14-17 inches from collar to floor
Medium: 17-20 inches from collar to floor
Large: 20-23 inches from collar to floor