【Flight Approved】 The external dimensions of this travel bag are 16.5” × 12.9” × 4.7” (42 cm × 33 cm × 12 cm), with a weight of 1.4 lbs. (0.64 KG). You can carry it on the plane as either your personal item bags or carry-on bag. It can be placed under the seat in front of you or in the overhead bin, and there's no need to pay any additional fees. 【USB Charging Port】This sporty and fashion backpack features a USB port with an internal USB connecting cable. You can connect a portable charger inside the backpack and your phone outside the backpack using the USB port. This allows you to conveniently use your phone for navigation or work on the go. Please note that the backpack includes the USB connecting cable but does not include a portable charger. 【Large Storage Space】This gym bag features a generously sized main compartment that provides ample space for clothes, books, electronic devices, and more. It includes two mesh pockets for storing items like portable chargers and smartphones, along with a spacious interior pocket designed for workout attire and dry towels. This bag caters to all your essential fitness carrying needs. 【Comfortable And Safe】This lightweight backpack comes equipped with a chest buckle on the shoulder straps to adjust the position as needed. Additionally, it features a luggage strap on the back, allowing you to easily slide it over the handle of your suitcase during travels, making your journey even more hassle-free. For added security, this anti theft bag comes with an anti theft pocket on the back to protect valuables such as cell phones and wallets, giving you peace of mind when traveling. 【Multi-functional Backpack】This laptop bag features a dedicated compartment for a 15.6-inch notebook, along with two water bottle holders capable of accommodating water bottles and umbrellas. The front pocket is designed to hold snacks, power banks, workout gear, and more. Additionally, there's a loop on the shoulder strap for conveniently stashing sunglasses. This backpack is designed to cater to the majority of your everyday needs. › See more product details