The CamelBak M.U.L.E. Stem Pack is a handy accessory for keeping essential gear close at hand. Fasten it to your bike for a secure attachment, even on rough terrain. Store a water bottle, snacks, cell phone, or whatever else you may need readily available as you speed down the trail or road. The convenient cinch closure seals nice and tight to protect the precious contents. Built-in reflectors assist with visibility and help you remain seen on the darkest nights and foggiest mornings. Made with sustainable nylon, this useful companion is strong and designed with function and the environment in mind.