When I first rceived my Osprey bag, I realised I hadn't checked out the size before I ordered it and it was bigger than I had imagined. But, I loved the colour which makes it easy to find in the depth of a dark panier, and the lightness of it, only 41 gms, and was pretty sure I could use it some day. It has become my food bag and it takes a lot of food including my plate and cup and cutlery. As it empties it takes up less and less room and due to it lightness isn't a bother in the pannier. Won't be travelling without it ever again.