**Product Specifications:**
**Brand:** Landcase
**Model:** CONVENIENT TRAVEL Large Capacity Backpack 80
**Features:**
- Multi-function design with independent shoe compartment and wet/dry separation pocket
- 180° opening design for easy access
- USB interface design and separate laptop compartment
- Breathable and soft back padding
**Quality:** Crafted with ingenuity and quality materials
**Design Highlights:**
- Independent shoe compartment
- Separate laptop compartment
- USB interface
- Wet/dry separation pocket
**Versatility:** Functions as both a backpack and a travel suitcase, equivalent to an 18-inch carry-on with approximately 35L capacity
**Travel Convenience:** Ideal for 3-5 day trips, featuring multiple compartments for organized packing
**Innovative Design:**
- Independent shoe compartment for separating shoes or dirty clothes
- Wet/dry separation pocket for organizing wet items
- Separate laptop compartment for easy access
- Luggage strap for convenient attachment to a suitcase
**Comfort and Protection:**
- Honeycomb cushioning system for shock absorption
- Ergonomic design for reduced pressure on the body
- Thickened cushioning for added comfort
**Charging Convenience:** External charging port for easy access to charge devices on the go
**Material:** High-density polyester for water resistance, durability, and easy maintenance
**Product Parameters:**
- Fits up to 15.6-inch laptops
- Dimensions: 43cm x 30cm x 20cm (small size), 47cm x 31cm x 22cm (large size)
- Weight: 1.2kg
- Color: Off-white
- Material: Fabric
- Capacity: Fits 15.6-inch laptop in main compartment
**Structure:**
- Front zip pockets x 2
- Wet/dry separation pocket
- Independent shoe compartment
- Anti-theft back zip pocket
- Main internal compartment
- Laptop sleeve
**Product Display:**
- Front view
- Angled view
- Back view
- Detailed close-ups of features such as dual zipper closure, side buckles, padded handles, and pressure adjustment buckles
(Note: Measurements are hand-measured and may have a 1-3cm range of error. Actual product may vary slightly from specifications provided.)