Adult waterproof large-capacity USB backpack

Adults backpacks  detail attribute: 1、Product Name: Adult waterproof large-capacity USB backpack 2、Product NO.: ECB-01LB-A01016 3、Main Fabric: polyester 210D/cotton/oxford/nylon 4、Printing: Silk-screen printing/Digital printing/rubber logo/Metal nameplate etc. 5、Product Color:Black/Blue/Gray 6、Sample time: 5-7Days 7、Payment: FOB/CIF/CNF/EXW 8、MOQ: 300pcs 9、Product Size: W30*H44*14cm Key Features: This backpack boasts several standout attributes designed to enhance user experience. Its waterproof exterior protects contents from unexpected rain or spills, while its large capacity accommodates everything from documents to electronic devices. Equipped with a USB charging port, it allows convenient on-the-go charging for connected lifestyles. Additional highlights include adjustable shoulder straps for comfort, multiple compartments for organized storage, and reinforced stitching for added strength. Our Adult Waterproof Large-Capacity USB Backpack is meticulously engineered to deli…