Give me opinions. My kids are going into 2nd and 5th. The backpacks they have from last year are in good condition still. (they both have adidas ones) I hear so many good things about LLBean...then recently it's been Jansport. I looked online to see what they had, and I am overwhelmed with all the different kinds!! I see they say lifetime warranty. That is what hooked me in to look. I wash the kids backpacks once a week in the washing machine on handwash, and they hold up awesome. (yes, I may be an ocd clean freak...but they sit on dirty floors and my 1st grader last year had a few times he had to go to the bathroom as he was walking out for me to pick him up, and he said he put it on the floor because the hook in the stall was broke. Ewwww) Give me opinions on these 2....and if I bought them one, what the heck size is good for each of them? There are so many options!