My whole family has one bag for this year long trip. All of us kids have Tom Bihn Synapse 19 backpacks now. And my dad has a Tri-star Tom Bihn backpack. And my mom has a Aeronaut Tom Bihn backpack. I love Tom Bihn because all of his bags are really easy to carry around with you. Into hotels hiking. on airplanes running and basically everywhere you go. And has tons of cool pockets for drawing toys and of course your clothes. Recently we even got to go to his factory and meet him. His factory was awesome! He was cool! Tom Bihn backpacks rock!