Expandable capacity: the dimensions of the backpack with rolled top are 29.00 cm x 18.50 cm x 55.00 cm (30 L). Maximum size under expansion 29.00 cm x 18.50 cm x 62.5 cm (35 L). Enough space for all your daily necessities.
MULTIFUNCTIONAL ORGANIZER: Inside the main pocket there are two mesh pockets for items such as keys and USB cable. The mesh pocket with drawstring on the left side can hold a water bottle or umbrella. The elastic strap on the front helps to attach items such as hat, jacket and football. A waterproof zip pocket on the front provides additional storage space.
Waterproof: The backpack and zippers are made of waterproof material, effectively protect your belongings from rain.
Three carrying options: the backpack can be attached to the saddle of a bicycle, with the buckles on both sides lock the rolled top. You can adjust the chest buckles to reduce the pressure when you wear the backpack over your shoulders. With the handles, the backpack can also be used as a carry bag.
Ingenious design: The backpack features a 3D recess design, which improves air circulation and heat dissipation. A valve on the left side can deflate the air inwards to keep the backpack flat.