What is it? Named after the Italian word for Brick, Mattone is a water-resistant, ultra-compact seat bag that attaches to the rails using the BOA® Closure System. Unique zipper design allows it to be accessed while on the bike, or to open like a book when removed from the bike for easy access. Who’s it for? Mattone is for the cyclist looking to carry a spare tube, CO2, Multi-Tool, and some cash in a discrete, water-resistant package. Internal divider holds ID, credit card or cash while also protecting your tube from your multi-tool!