Wet/Dry Separation: Prevents cross-contamination with a dedicated wet/dry pocket, safeguarding electronics and clothes from moisture damage. Expandable Capacity: Effortlessly transition from 40 to 60 liters, akin to a 24-inch suitcase, while maintaining a compact form for versatile travel needs. Vacuum Compression: Utilize the one-way valve for electric or manual compression, optimizing luggage space efficiency with minimal effort and maximum convenience. Anti-theft Design: Secure belongings with an integrated combination lock on the main compartment and a discreet back zipper pocket for valuables, ensuring peace of mind during travels. Versatile Durability: Crafted from robust Oxford cloth, this backpack withstands diverse weather conditions, making it ideal for daily commutes, weekend getaways, business trips, or as a thoughtful gift for avid travelers. Introducing our versatile cycling backpack with Dry/Wet Separation feature. Keep your belongings organized and protected with multiple compartments and a dedicated wet/dry separate pocket. The expandable capacity of up to 60 liters, equivalent to a 24-inch rolling suitcase, ensures you have ample space for all your essentials. Utilize the vacuum compression feature with a one-way valve for quick compression or manual pressure release to maximize luggage space. For added security, the anti-theft design includes an anti-theft combination lock and a hidden zipper pocket on the back. Crafted from durable fabric, this backpack is perfect for daily, weekend, or business trips, making it a great gift for travelers. Choose our expandable vacuum backpack for all your travel needs. Item Name: Cycling Backpack Material: Oxford Features: Large Capacity, Waterproof, Vacuum Design Size Details: 49cm x 32cm x 15cm-20cm(Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Cycling Backpack