K9 Sport Sack Air 2 Forward Facing Dog Carrier Backpack, Light Grey, Small; Take your pooch wherever the adventure goes with the K9 Sport Sack Air 2 Forward Facing Backpack Dog Carrier. Now your pal will always be part of the action, even when he can’t keep up, because this innovative design allows him to sit comfily on your back with his head out for uninhibited visibility and engagement. It features ventilated sides for the full al-fresco effect, easy-pull zippers, adjustable side pockets for all your essentials, and a collar hookup D-ring for added safety. Thanks to the thick bottom rest pad, your dog can sit comfy while he rides “piggyback”, while the Foam-Tek slotted shoulder straps keep you cool. Plus, it even has a fuzzy fastener soft side so you can add custom name tags and lights.