The Ortlieb Handlebar Pack quickly stands out as one of the best bike-packing bags we've ever used. About half the size of a normal backpack and capable of strapping to our handlebars, this pack has enough room for our bivy, some snacks, and maybe a book or two. It's perfect for our camping essentials and the pack fixes securely onto our road or mountain-bike handlebar with a featured 'roll-up' closure to keep everything dry.