It's designed for our more compact canine friends who, after all, deserve adventure just as much as the big guys. It's outfitted with loads of small design details to make life on the go easier and more comfortable—like the completely waterproof ArmorsoleTM bottom, an exterior carabiner to attach it to a car seatbelt to prevent sliding, breathable mesh sides, and rugged ripstop fabric—rugged and lightweight, it won't add to your load.