Pottery-barn-large-backpack-for-kindergarten, i would like to buy a new backpack for my little guy who's beginning kindergarten in the fall. what size would you recommend? (i'm looking at pottery barn's backpacks - small backpack is 11 x 5.5 x 14", large backpack is 12.5 x 7.5 x 17"). My ds (dear son) is going into kindergarten and i can not decide what size pottery barn backpack to get him. we are pretty set on getting the baseball print one, i just need to decide on size., backpacks are a great way of carrying books and supplies to school. in this video, rachel, a designer with pottery barn kids, tells us how to choose the righ...