Durable nylon construction provides a lightweight, hardwearing, and easy to clean bag that protects your laptop on the go. Back luggage strap securely fixes to the trolley of a suitcase, enabling hands transport and reducing bag sway during travel. Main laptop pocket is sized for most standard laptops with a snug, secure fit for reliable protection. Exterior side pocket with zipper offers convenient storage for receipts, business cards, or small accessories during meetings or trips. Practical benefits: compatible with most carryon luggage, improves organization, and enhances travel efficiency. Use scenarios: 1) Travel by air: attach to your suitcase handle for stable, easy carrying through airports. 2) Daily commute: quick access and secure laptop transport between office, transit, and home. 3) Business trips: keep receipts and cards organized in the side pocket while on the go.