**Product Specifications:**
**Brand:** MARK RYDEN
**Design:** Innovative expandable backpack design, suitable for daily commute or business trips
**Capacity:** 23L in daily commute mode, expandable to 39L in travel mode
**Material:** Oxford fabric
**Dimensions:** 50 x 31 x 15cm
**Color:** Elite Black
**Weight:** 1.2kg
**Type:** Backpack/Travel bag
**Shoulder Strap:** Adjustable length from 45-95cm
**Features:**
- Expandable body with multiple layers for increased thickness and capacity
- Charging port for continuous phone charging on the go
- Water-resistant fabric for worry-free travel in rainy weather
- Honeycomb back padding for reduced pressure and increased comfort
- Comparable to a 20-inch trolley case with expandable capacity to 39L
- Multiple compartments including hidden front pocket, multi-functional side pockets, large main compartment, laptop sleeve, and anti-theft back pocket
- Fits up to a 17.3-inch laptop
- External USB charging port for convenient charging
- 180° opening for easy access to large items
- Thoughtful details such as public transport card slot, comfortable carry handle, adjustable straps, and back strap for attaching to trolley case
**Additional Information:**
- Due to manual measurement, there may be a 2-4cm error in dimensions
- Color may vary slightly due to different screen displays
**Accessories:** YKK zipper for durability and security
**Compatibility:** Fits 17.3-inch laptops and various personal items
**Usage:** Suitable for daily commute, business trips, and air travel
MARK RYDEN products are designed with attention to detail and functionality, providing convenience and comfort for professionals on the go.