Install the straps, it can be as a backpack. Expanded space allow you to put your helmet and any other items like smart phone, purse and keys etc. Bright reflective strip light on both sides can enhance the safety of night and haze weather. Two-way waterproof zipper makes it easily to take your things. Removable hollow mesh strap reduces back pressure and keep the back breathable and comfortble. Package Size:410*270*200mm/16.1*10.6*7.9in Package Weight:1300g
