Ortlieb’s robust classic Messenger Bag is proportioned to carry loads without ever weighing you down: the Velcro flap seals everything secure and allows flexible packing height and quick access to A4 folders in its 39 Litre main compartment while the ventilated foam back, chest strap and padded shoulder straps keep everything stable. Large reflectors on sides and shoulder straps contribute to safety in bad weather conditions, dusk and dawn.