• Polyester lining
• Zipper closure
• 【Expandable Design】Dimensions: 18.1" x 11.8" x 8.7". The extended capacity is 23L to 38L. Independent padded compartment fits up to 19" laptop. Multi-organized compartments and large space perfect for trip or hiking
• 【Built in USB & Earphone Ports】 External USB charging port with detachable 4.0 fast charging cable offers convenience to charge your phone and other electronic devices everywhere. A hole for headphone outside gives easy access to earphone usage
• 【Human Design】Comfortable ergonomic design padded shoulder straps and ventilation padded back can break down the shoulders' stress. Luggage belt can fix the backpack on the luggage handle tube for easy transport
• 【Water-repellent & Anti-theft】Constructed of water-resistant oxford fabric and high-density polyester fabric for lasting durability. Patented double-layer lockable zipper design for the main compartment allows easy access and increase safety
• 【Great Gift Choice】Spacious and functional. Suitable for college life, business traveling and outdoor activities. Value gifts for those who go to school, travel or work

CA residents: see the California Proposition 65 WARNING
 WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov