Piggyback 2WAY S size and small dogs hug bag Carry bag hug (japan import) 2WAY type hug also piggyback ride can be. (This is the size that appears in the image) is a great size for small dogs a little. It is safe to know the state of the dog because it can be a sense of security  hug're in chest dog. Side has become a mesh, breathable comfortable well. Can be fitted with a single touch. I can also adjust the length of the backpack straps. Hooks attached to the collar in order to prevent it popping out also arrived.