Seagull Bags, a Columbus, Ohio-based company founded by Daniel McKewen in 2003, creates custom courier bags that are made to order. Seagull Bags is like a Savile Row shop for bike messengers who want and expect the best for their backs.

Their medium courier bag is a bespoke bag to the fullest extent. Need additional pockets? The team at Seagull Bags will add them. Want a custom embroidered design? Send them a PDF or Adobe Illustrator file and they will be happy to add it to your bag.

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The medium courier bag can also hold plenty of gear. It is reassuring to know this bag will carry a thick sweatshirt, a six-pack of beer, burritos, and a large water bottle with room to spare. Bike messengers on the job should have no problems transporting important documents and essentials across town with this bag. Outer straps can also be used to transport larger, bulkier items.

image/Seagull BagsA unique part of the bag is the shoulder strap. The strap is comfortable, easily adjustable, and forgiving during long rides through town, but it also is an extension of the bag's versatility. A simple metal loop may not look exciting, but its addition will please many bikers. Anything on a carabineer, from keys to a Nalgene bottle, will attach easily to the strap for easy access. The metal loop also helps adjust the bag to contour with your back. The strap's design is Seagull's own proprietary creation, but it's hard to imagine that it won't become the new courier bag standard in a few years' time.

Seagull Bags can be purchased through their website, and their Medium Courier Bags start at $145.