• 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