30% increase in laptop bag capacity: Special extended function, if necessary, open the side zipper, it can increase the space by 30%, provide enough capacity to place your laptop, your mobile phone, your charger, etc. The best Father’s Day gift. High Quality Material: The exterior of this laptop case is made of high quality waterproof Oxford, with a soft and breathable sponge inside, providing 360° protection for your laptop and various devices. Multifunctional laptop sleeve: 2 carrying modes: Provides a detachable shoulder strap, can be used as a shoulder bag or a handbag according to your needs ; main compartment and many side pockets, more convenient to place laptop, ipad, mouse accessories clearly; used with Trolley Box by the wrist strap. It will be a good partner for your daily use or business trip.