Cord lock: Secure your items inside. It has a cord lock at the top of the bottle holder to tighten the top, which is adjustable to different bottle widths, at the same time prevent the stuff popping out while passing the uneven road. | Mesh pockets: A good place to store other stuffs. Two mesh pockets are very convenient for you to storage your staffs such as cellphones, keys, sunglasses, cards, newspapers,etc. | Leakage hole design: keep your holder dry and clean. The leakage hole on the button drain the water out, no worry about getting wet or piling up water all the time. |