• 【Expandable Design】Innovative expandable backpack design with a capacity of 27L, expandable to 35L (equivalent to a 20-inch suitcase) to accommodate 5-7 days of travel essentials.
• 【180° Box-style Opening】User-friendly design allows for easy access to contents, making packing and retrieving items convenient.
• 【Multi-layered Organization】Features multiple compartments including a wet/dry separation bag for efficient and logical storage of various items.
• 【Ergonomic Comfort】High-elastic foam massage shoulder straps and 3D breathable honeycomb back padding reduce shoulder pressure and promote air circulation for a comfortable carrying experience.
• 【Travel-friendly Features】Water-resistant high-density fabric protects contents from spills, while the luggage strap allows for easy attachment to rolling suitcases.
• 【Large Laptop Compartment】Accommodates laptops up to 17.3 inches, making it ideal for students and professionals.
• 【One Pump for Multiple Uses】The package includes a rechargeable vacuum pump. It has a large-capacity 1200mAh battery and is equipped with five different interfaces to meet the needs of a variety of vacuum bags and inflatable products.

Specifications:

• Model: PS-676
• Material: Polyester
• Size: 34*16*49CM, after expansion: 34*21*49CM 
• Capacity: 27L, after expansion: 35L 
• Weight: 1.55kg
• Vacuum pump battery capacity: 1 x 1200mAh rechargeable lithium battery