Product review (5 stars): Perfect for bike commuters
I only used this bag once, but I already love it! It fits everything that I used to stuff in my backpack for commuting to work, and conveniently straps to the luggage rack for a more efficient ride. The expandable side pockets are great, no need for extra saddle bags for a day trip. I got to use the rain cover on my ride home and everything inside stayed dry.heres what I was able to csrry: full change of clothes, shoes, toiletries, large clutch style wallet, spare tube, pump, and a lot of food-two meals and lots of veggies for snacks. I even had room for a birthday gift for mom that I needed to ail out! Plus room to spare. Well made,  I am totally thrilled with this purchase.