I'm not sure about this one. I didn't see a thread for it, so decided to make one. I'm also not sure if it was offered at any other AGP than Chicago, as I got this around 2002.
Well, it's a black and red doll-sized backpack. The straps are thin and adjustable, letting the doll put it on with ease. There is a real pocket on the outside, though small, and "American Girl Place" is stitched along the bottom. The red material seems like a vinyl, and the black nylon. The bag opens on the top with two sets of snaps closing it. The sets criss-cross on the top to secure anything in the bag. While not terribly huge, the bag can hold small doll items such as Jess' Waterbottle. Personally, I like to keep a Presidential Dollar Coin in it. Overall, great quality and highly recommended!