Don't be fooled by the name--while the Seattle Messenger might look like a courier bag on steroids, it's also a practical portable office. This 2250 cu. in. bag easily doubles as a daypack or a business brief, with a high-density Cordura shell that shrugs off any weather. A load-bearing waist strap transfers load weight from your shoulders to your hips (you can also tuck the strap away if you don't need it).