The topeak drybag handlebar bag is a full featured handlebar bag utilizing drybag technology to keep contents dry rigid eva foam provides shape and insulation against road shock and vibration waterproof 420 denier and 840 denier nylon with sonic welded seams a drybag roll top closure and weather tight zippers offer complete protection from the elements plus theres a convenient quick click clamp shoulder strap for off bike use reflective printing provides extra visibility