Specialized's Wedgie Bag is the perfect size to carry the essentials and just a bit more. It'll hold a tube, patch kit, tire levers, mini tool and a cell phone and energy bar. Plus it has a water-resistant coating and zipper to keep your gear dry. It even has an internal neoprene tool pocket for easy access and to protect your spare tube from getting punctured. What's more, the Wedgie attaches in a snap and stays put thanks to its handy hook-and-loop straps.