A messenger bag (also called a courier bag) is a type of sack, usually made out of some kind of cloth (natural or synthetic), that is worn over one shoulder with a strap that goes across the chest resting the bag on the lower back. While messenger bags are sometimes used by couriers, they are now also an urban fashion icon. Some types of messenger bags are called carryalls. A smaller version is often called a sling bag.
Similar in function to backpacks, messenger bags ensure comfort to people carrying heavy and/or bulky items, while allowing easy access to the contents.
Messenger bags typically incorporate features that make them particularly suitable for cycling, such as fittings that make it easy to adjust the shoulder strap, quick release buckles, an adjustable hinged buckle, and the ability to attach a variety of accessories, such as lights, phone holsters, or U-locks. Contemporary stabilizing straps help to prevent the bag from shifting while riding. The top-opening one-strap design allows messenger bags to be easily swung around front so that their contents can be accessed without having to remove the bag.
Messenger bags are often used as a fashion accessory. While they can be found in the possession of either gender, they are often commonly employed by men in a function analogous to a woman's purse (that is, to carry bulky items that do not fit into pockets, or a large number of items, while doubling as a fashion accessory). Messenger bags have also become fashionable in urban environments, among cyclists and commuters. Many college and high-school students make use of them for fashionable and functional purposes, especially those who commute on bicycles. Compared to a backpack, it is much easier to place and remove text-books, notebooks, essays and supplies from a messenger bag because they can be easily shifted to lie on the side of the body (or, if the strap is long enough, it will be there by default), granting the wearer better accessibility. Messenger bags also provide more weather resistance than traditional leather satchel-style school bags.
Such small messenger bag can also contain many small stuffs, like the balls, keys or our phones. Our customer can also custom their own messenger bag, if the want a bigger bag, it is also ok. And they can also put their logo on the bag, and choose the length of the strap if they need longer one.