Save your back and let the bike do the work with the Thule Commuter Pannier Bag. Don’t get us wrong, we love our messenger bags and rely on them daily, but regardless of how well they’re designed it’s still a pain in the ass to be hauling one around when you’re biking. The Thule Commuter Pannier seamlessly mounts and dismounts magnetically to Thule’s vanishing Tour hardware rack, or connects to virtually any other type of rack. This bag features a super comfortable top handle, messenger bag style shoulder straps, roll top design, built in reflective fabric, and is weatherproof & breathable. If you’re commuting into the office hauling a laptop on a daily basis, you may want to retire that messenger bag and settle for something a little more functional. Available in left or right side designs, get one or two here.