The Topeak EX MTS Trunk Bag features dual molded side panels combined with flexible 600 denier fabric to form a semi rigid, weather resistant carrier mounted bag. A divided main compartment with mesh side compartments provides easy organization of items, while a rear water bottle holder keeps hydration within quick reach. The EX MTS Trunk Bag attaches with integrated straps, is compatible with all rear carrier types and comes included with an easy carry handle and shoulder strap for portability.