Computer size: 15 inches Pattern: Solid Color Lining texture: Polyester Scenario: leisure travel Color: dark grey, grey, black Applicable gender: neutral/both male and female Material: Oxford cloth Carry system: curved shoulder strap Popular elements: sewing line Style: Urban minimalist Capacity: 20L or less Upgrade your daily commute and business travel with our Professional Casual Laptop Backpack. Engineered for efficiency and durability, this backpack is the ultimate solution for modern professionals, students, and frequent travelers seeking a reliable and secure carrying solution. **Superior Durability & High-Quality Build:** Constructed from premium, wear-resistant polyester fabric with reinforced stitching, this backpack is built to last. The heavy-duty zippers and abrasion-resistant bottom panel ensure it withstands the rigors of daily use, business trips, and outdoor adventures. **Large Capacity with Smart Multi-Functional Design:** Featuring a spacious main compartment that comfortably fits a 15.6-inch laptop, tablet, A4 folders, and daily essentials. With 20+ liters of capacity, it serves perfectly as a business briefcase, travel backpack, or college school bag. Multiple internal organizer pockets (pen slots, key fob, mesh pouches) and external quick-access front pockets keep your phone, power bank, and passport always within reach. **Security-Focused Professional Features:** The anti-theft back pocket hides a secret zippered compartment for your wallet and valuables. A built-in USB charging port (cable not included) allows you to charge your devices on the go, connecting your power bank inside to your phone outside without opening the main bag. The luggage strap slides over your suitcase handle for seamless airport travel, making your journey truly efficient and hands-free. **Ergonomic & Comfortable to Carry:** Padded, S-shaped shoulder straps relieve neck and shoulder pressure, while the breathable mesh back panel promotes air flow to keep you cool during long commutes. Whether for a daily business commute, a weekend getaway, or a work trip, this backpack delivers professional style with practical utility. Choose our backpack for a perfect blend of professional aesthetics, secure storage, and rugged durability – your trusted partner for every journey.