This Thickened Vacuum Compression Backpack offers an ultra-large capacity with a one-way air valve, allowing you to compress the contents by hand effortlessly. Designed with multiple compartments and pockets, it includes a special dry and wet separation pocket, making it perfect for organizing various travel essentials. The exterior is made from waterproof laminated material, while the interior features durable Oxford fabric. For added comfort, the backpack has a 3D honeycomb back pad that is breathable and supportive. It can also be securely attached to your suitcase for easy transport. Customize it with your logo for a practical and stylish travel solution. Measuring 18.11*11.81*8.27 inches, this custom thickened vacuum compression backpack. Usage Scenarios: Office supplies, school stationery, corporate promotions, trade show giveaways. Tailored branding: Supports logo imprint and design personalization. Product Highlights: Portable, durable, practical for daily use.