【Material】: 100% Oxford cloth Function: breathable, waterproof, wear-resistant, shock-resistant, lightening Applicable gift-giving occasions: opening ceremony Opening method: zipper 【Product Description】: Here, it’s filled with the world: laptops, SLR cameras, notebooks, iPads, books and magazines, glasses, mobile phones, wallets, watches If the phone is out of power, it can be charged in three steps. You can easily solve the trouble of no battery when you go out. Plug it in and charge easily Connect the power bank-data cable connection-data cable to connect to the phone. 3D three-dimensional breathable, decompression and breathable, bid farewell to the wet body, refreshing and comfortable, rejecting the smell of sweat 【Product Features】: Scientific compartment for large-capacity storage, large-capacity multi-layer storage space design: main pocket computer compartment + text compartment, front side pocket + front zipper pocket + side pockets, side pockets can store water bottles and umbrellas, etc. Meet daily needs The backpack carrying strap is thick, reinforced with jujube, not easy to get off the line Metal two-way slider for smooth pulling The shoulder strap is soft and widened to increase the force-receiving area, and the carrying is comfortable and light. External music headphone jack, convenient, stylish and individual Nowadays popular luminous effect, personality trend and fashion Free retractable buckle, the length can be adjusted according to personal preference