• Expandable Capacity: 25L-45L: Adjust the size of your backpack to meet your travel needs. In standard mode, the backpack holds 25L (18.9x12.6x6.7 inches); expand it to 45L (18.9x12.6x11.4 inches) for extra packing space. Ideal for 5-7 day trips.
• [Convenient USB Charging Port]: Stay powered on the go with the external USB port and built-in charging cable. Simply connect your power bank to charge your devices anywhere. The hidden anti-theft pocket on the back provides secure storage for valuables like passports and wallets.
• [Durable & Waterproof Design]: Crafted from water-repellent fabric and anti-scratch material, this backpack keeps your items dry and safe in light rain. Breathable mesh padding on the back and adjustable shoulder straps offer comfort and reduce shoulder strain.
• [Airline Approved & Quick Access]: Meets airline carry-on size regulations, fitting under the seat or in the overhead bin. The 180° zipper design allows fast and easy access during security checks, making your travels more efficient.
• [Laptop & Travel Gear Storage]: Features a separate laptop compartment (18.5x11.8 inches) that fits a 17.3" laptop, plus a spacious main compartment for 5-7 days of clothing and essentials. Perfect for business trips, weekend getaways, and daily commutes. (Not for children under 12 years old.)