much smaller than expected, I guess i thought mini back pack but its a jansport so its good strong material; these backpacks last forever, i still have my big one from high school so I will keep this because its still big enough to hold things I'll need for going on day trips and bike rides and it fits into my basket on my beach cruiser which is more convenient than I thought. If you know jansport than you can expect there good quality in this backpack.