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

[Note] *1 Based on customer feedback, we have strengthened our inspections, but if you still receive an electric pump that has been left out of your shipment, please contact us. We will deal with it immediately, so thank you for your cooperation! *2 To achieve a better seal, the zipper is quite stiff, so please use force when opening and closing the zipper of the vacuum compression pocket. If the force is too weak, the vacuum compression pocket will not open or close, so please be careful! (You can also open the zipper while holding the hook with one hand!) [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. Please note that the TSA lock only locks the second layer (PC & tablet compartment). A hidden anti-theft pocket on the back allows you to safely store valuables such as a tablet, wallet, and smartphone. [Material] PVC tarpaulin + Oxford. HANANA'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] 1.7kg [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. [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. [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 [Simple & Unisex] This classic backpack has been loved for years! This popular, stylish, and luxurious simple backpack is finally here, suitable for all genders and generations! It's perfect for everyday use, including commuting to work, school, travel, school trips, field trips, hiking, cycling, outdoor activities, gifts, disaster preparedness, and everyday life. It's also great for light 2-3 night business trips. [PIN Setting] The PIN is set to [0-0-0] when shipped from the factory. 1. While it is set to [0-0-0], make sure the TSA lock lever and button can be turned. 2. To change the dial to your desired number, press the button on the right of the TSA lock. 3. While maintaining the setting in step 2, use one hand to set the dial number to [Any Number]. 4. After setting it to [Any Number], return the TSA lock lever and button to their original positions to complete the setting. *Note: 1. To reset the PIN, repeat steps 1 to 4. 2. For added security, write down the set PIN on your smartphone or other device in case you forget it.