Polyester Drawstring closure ??Large Capacity & Organized??Large main compartment with a separate padded laptop sleeve for screen sizes up to 15.6, roomy interior has proper space for keeping 3-4 days clothes, can hold daily necessities easily. Side Elastic pockets conveniently hold travel gear umbrellas or water bottles. The accessory compartment with zippered closure on the front as well as a zippered top pocket can store and separate essential accessories very well. ??Durable Material & Soild?? Airlab travel rucksack being made of durable ripstop and water-resistant lightweight polyester fabric with smooth SBS zippers. Comfortable and breathable sponge design of the back and straps, more comfortable carrying a heavy load, relieves the stress of your shoulder. Offering your back plenty of cushioned comfort. ??Functional & Anti-Theft?? Backpack with drawstring closure for compression, as well as clip-fastened adjustable webbing straps to ensure your safety in daily life. The zippered anti-thief sleeve on the back provides a good protection that prevent from unzipping stealing. ??Practical & Convenient?? The laptop travel backpack succeed in combining rugged durability and distinctive urban style; high-grade polyester liner, strongly protecting inner things. Luggage / Suitcase strap on the back is great to slide over the luggage tube and attached to your rolling luggage securely for easier transpor, helps to free your hand and back, will make your travelling and business trip more convenient. ??Perfect Companion & Gifts?? If you are looking for an amazing gift, Congratulations that you found Airlab Travel Rucksack!! AS A MUST-HAVE product, this Stylish backpack are SUITABLE for any men or women. Good to serve as travel backpack, bookbag, school bag, casual backpack, laptop bookbag. Ideal gifts for travelers, business men/women and outdoor enthusiasts.