"Key Feature: Vacuum Compression, Space Saver The MARK RYDEN travel backpack features a vacuum compression design that compresses clothing and other packable items to maximize space efficiency, allowing you to carry more with ease. The main zipper is designed to be tight for security and requires some force to pull, but it’s made of durable BBS zippers, so you don’t have to worry about it breaking. Expandable Capacity, Versatile Design Expandable Storage: Starts at 20L and expands up to 35L, adapting to your packing needs. Multi-Carry Options: Dual handles on the top and side make it easy to switch between backpack and suitcase modes, allowing you to carry it vertically or horizontally.Comfortable, Durable, and Multi-Purpose Ergonomic Design: Features a multi-panel airflow system, 3D back padding, breathable adjustable shoulder straps, and a waist belt to distribute weight and reduce strain on your shoulders and back. Travel-Friendly: Comes with trolley straps to attach to your luggage, making it perfect for hassle-free travel.Durable Waterproof Fabric, Thoughtful Details High-Quality Material: Made with 900D composite leather film, ensuring water resistance and durability for all weather conditions. YKK Zippers: Custom high-strength zippers for smooth operation and long-lasting use. Smart Organization: Includes a dedicated digital compartment and multiple organizer pockets for efficient storage and easy access.Perfect For Short Trips: The vacuum compression design is ideal for 3-5 day trips, offering lightweight convenience and ample space. Business Travel: The expandable capacity and sleek design make it a great choice for business trips. Outdoor Adventures: Waterproof material and comfortable design are perfect for camping, hiking, and other outdoor activities.Technical Specifications Material: 50% Polyurethane PU + 50% Backing Fabric Hardware: Steel buckles + Zinc alloy pullers Airtight Level: Level 7 (best for short-term use, not recommended for long-term storage)In a Nutshell: The MARK RYDEN Vacuum Compression Travel Backpack combines spacious design, smart functionality, and premium durability, making it the ultimate choice for short trips, business travel, and outdoor adventures! 【VACUUM COMPRESSION】The MARK RYDEN vacuum sealed bags for travel features an integrated vacuum compression system . Our backvac pro backpack are equipped with a vacuum suction valve that allows you to use an electric vacuum pump for quick compression or manually press to release air. Compresses at least 10 pieces of thin spring and summer clothing, greatly saving storage space 【YOUR IDEAL TRAVEL COMPANION】 Vacuum backpack size:11.8*6.3*18.1 inches. This airbag reduces clothing storage space by up to 50% with vacuum-sealed compartments. The two handles set on top and one side provides flexible carrying options ,and breathable and adjustable shoulder straps to reduce shoulder and back strain 【MULTIPLE COMPARTMENTS AND POCKETS】Travel backpack is designed for versatility ,180 ° box open and close. MARK RYDEN backpack has many different pockets, including Expanded airtight area, general storage area, computer compartment and anti-theft pocket on the back, making your items organized and easier to find 【SMOOTH ZIPPERS AND QUALITY FABRICS】MARK RYDEN vacuum seal backpack all exterior zippers are YKK zippers (additional durable zippers for main pockets to maintain airtightness), ensuring smooth operation and durability. Vacuum compression backpack is made of high-density oxford fabric, waterproof, durable, well made and comfortable 【VACPACK CARE GUIDE】 Avoid sharp objects that could puncture your vacuum seal backpack. Before vacuuming, ensure zipper is fully closed.over-vacuuming strains seams. Post-trip, inspect for leaks or damage.(To maintain the vacuum seal within the backpack, significant force is required to open the zipper, but rest assured it is highly durable and won't break) Date First Available: November 16, 2024 Shape: Square Unit Count: 1.0 Count Included Components: Air Pump Recommended Uses For Product: Travel, Electronic Accessory ASIN: B0DMW5GSPD Other Special Features of the Product: Vacuum Sealed, Adjustable Material Type: Polyester, Leather Batteries: 1 Lithium Polymer batteries required. (included) Product Dimensions: 45.72 x 27.94 x 15.24 inches; 1.56 kg Item Dimensions L x W x H: 30L x 16W x 46H centimeters Special Features: Vacuum Sealed, Adjustable Colour: Elegant Black Department: 中性 Batteries Required?: Yes Item Height: 6 inches Manufacturer: MS Number of Items: 1 Manufacturer : MS Batteries Included?: Yes Battery Cell Type: Lithium Polymer Color: Elegant Black Item model number: MR9299YKK_QM00 Number of Sets: 1 Material: Polyester, Leather Brand Name: MS Closure Type: Zipper Item Weight: 3.44 pounds"