I have just ordered a Through the Back Door carry-on sized backpack because I wholeheartedly agree with Rick on the value of traveling hands-free, and an upcoming trip will involve some uneven terrain, making my spinner inappropriate.
I have read and reread his article on choosing a luggage style and this question isn’t going to answer itself no matter how many more times I do. He says he wants his hands free for, e.g., buying a bus ticket while eating a sandwich—a compelling use case indeed. But he also says he travels with a daypack, and that he dislikes the detachable ones that come on some larger packs (he doesn’t elaborate).
Two backpacks, one back … that means one of the bags is going in a hand, interfering with either the bus ticket or the sandwich. The accompanying photo even shows him wearing his larger pack and holding the smaller one by its top strap.
So that’s not hands-free and it looks like a really uncomfortable way to travel. What am I missing? Does the daypack get packed into the carry-on pack on travel days? That seems like it would consume a lot of space.