**Specifications:**
**Brand:** VICTORIATOURIST, JUSTFORMAN
**Product Name:** Multi-functional Expandable Backpack
**Material:** Waterproof material
**Design:** Scalable design
**Features:**
- Multi-warehouse independent partition
- USB charging port
- Multiple scene design for short business trips, leisure camping, and daily commuting
- Expandable design with hidden zipper for instant 10cm expansion
- Capacity: 23L (normal), 37L (expanded)
- Exploration of space with large main pocket, laptop and tablet compartment, multifunctional compartments, zipper bag, hide bag, and shoe warehouse
- Stress-free battery with shoe compartment that fits up to size 45 shoes and a mobile charging system
- Three-step charging system for mobile phones
- Internal wiring for power bank connection and USB connection for phones
- Medium pressure relief technology for comfortable carrying
- Close-to-heart design for hanging on luggage
- Portable design with side carrying handle
**Dimensions:**
- 45cm x 31cm x 18-28cm
**Color:** Simple gray
**Weight:** 0.9kg
**Material:** Polyester
**Size:** 31*16.5*45cm
**Model:** V9012
**Specifications:** Fits up to 17.3-inch laptops, 5-7 days of travel clothes/daily essentials
**Detail of Texture:** Delicate texture with reinforced stitching, adjustable shoulder straps, high-quality two-way zippers, and secure closures
*Note: Due to lighting and monitor differences, colors may vary slightly. Manual measurements may have a 1-2cm error margin. Actual product details may vary.*