This backpack is perfect for all your leisure and work needs. It features a high-density canvas exterior and a polyester interior. The backpack has a capacity of 18L and can fit A4 items and up to 13.5-inch laptops. It includes two side pockets for bottles or umbrellas, a main compartment with a concealed double zip, an internal zipped pocket for a laptop/iPad, a front zipped pocket for essentials, and an anti-theft pocket on the back for added security. All measurements are external, and internal measurements may differ by 1-2cm.