The ortlieb messenger bag is the ideal choice for any cyclist looking for that perfectly sized bag that isnrsquot going to weigh you down the ortlieb messenger bag is a robust classic messenger bag proportioned to carry loads without ever weighing you down a handy velcro flap seals everything in secure and allows flexible packing height and quick access to a4 folders in its 30 litre main compartment while the ventilated foam back chest strap and padded shoulde