OPOALO Vacuum Compression Backpack for Men, Fits 17-inch Laptops, Dual-Layer Design, Large Capacity, Multifunctional Design with TSA Lock, WetDry

Please note: *1) To ensure a good seal, the zipper is quite stiff, so you will need to use force to open the vacuum-sealed pocket. If you use too little force, the vacuum-sealed pocket will not open, so please be careful! (You can also open the zipper while holding the hook with one hand!) *2) The TSA lock can only be used on the second layer (PC and tablet compartment). [Innovative Vacuum Compression Backpack] The ultra-easy vacuum compression function allows you to store up to 50L of luggage with just a push of your hand! The backpack has a built-in compression compartment with a vacuum air valve, so you can easily increase the capacity through vacuum compression even when you have more luggage! The backpack also comes with a TSA lock, ensuring your valuables are well protected even when traveling abroad. The hidden anti-theft pocket on the back allows you to safely store valuables such as a tablet, wallet, and smartphone. [Material] PVC tarpaulin + Oxford. OPOALO's air vacuum backpack is made of high-density Oxford fabric, a highly water-repellent material that protects the contents of the bag from rain and dirt, making it perfect for sudden downpours in the city! [Weight] 1.5kg [Pockets] 14; [Large Capacity, Multifunctional] Carry-on size. It can neatly store not only A4-sized documents, but also a laptop up to 17 inches, two nights' worth of clothes, a water bottle, pens, and more. The interior is scientifically designed with compartmentalized storage to separate wet and dry areas and isolate odors. [14 pockets for excellent storage capacity] Size (before expansion): 34cm W x 47cm H x 10cm D (16L) ⇒ Size (after expansion): 34cm W x 47cm H x 17cm D (27L) ⇒ Size (after vacuum compression): 34cm W x 47cm H x 31cm D (50L) / [External pockets] Front pocket *1 (main pocket with key ring *1, zipper pocket *1), expandable side pocket *1, rear anti-theft pocket *1) [Internal pockets] First layer: wet/dry separation pocket *2, vacuum compression pocket *1 / Second layer: main pocket *1, 17-inch PC compartment *1, 9.2-inch iPad pocket *1, pen pocket *2, small item pocket *2, open pocket *1 [A comfortable, hug-your-back feel] The double-layered design, featuring a mesh, cushioned back panel and a central ventilation channel for breathability, reduces back stuffiness and ensures a comfortable carrying experience. The ergonomic straps and the entire back feature thick cushioning and highly breathable mesh material for a decompression effect, reducing strain on the back. Even on hot days, they effectively release uncomfortable humidity for a refreshing feel. It also comes standard with an adjustable chest belt that supports the weight of the pack across your chest for a lighter feel. [Versatile] Perfect for everyday use, such as commuting to school or work, as well as travel, business trips, sports, hiking, mountain climbing, picnics, and other outdoor activities. It also makes a heartwarming gift for fathers, boyfriends, friends, and colleagues on New Year's, Christmas, anniversaries, job hunting, school entrance ceremonies, and graduations. Its simple design and muted colors make it suitable for people of all ages and genders.