The K9 Rucksack has all the features you want in a carrier, plenty of room, ventilation, and an interior pad that can be washed. But the pack also comes equipped with room for your laptop or iPad, an interior tether to keep your pup in place and a thoroughly water and muck proof bottom that wards off even the dirtiest of subway floors. We understand you want to go together everywhere, we just made it easy to do it in style.