From the office to long-distance travel, you can easily take it with you! This multifunctional roll-top backpack is a practical companion designed for modern city dwellers. It is made of durable and waterproof fabrics and features a simple black design. It is unisex and timeless. The large capacity of 20 liters easily accommodates 15.6-inch laptops, daily office supplies, and travel items. The unique roll-top design, which is both anti-theft and expandable, makes business trips, daily commuting, and short trips possible with just one bag! Product Specifications Material: Water-repellent fabric Dimensions: 42 cm high, 29 cm wide, 16 cm thick Applicable scenarios: office, travel, campus, daily commute High-quality material: high-quality waterproof Oxford nylon. Durable, waterproof, and tear-resistant, for robust performance with low weight. Large capacity backpack: 29 x 16 x 43 (L x W x H), durable, waterproof, and stylish. An ideal backpack for weekend trips, beach holidays, or daily use. The main compartment has a snap closure and a drawstring, and the front strap is reinforced with metal rivets for optimal security and perfect protection of your valuables. It can hold tablets, clothes, books, umbrellas, mobile power supplies, and other necessities. The back pocket with a zipper can hold small items such as mobile phones and wallets. Durable and practical: This backpack is made of high-quality polyester, which is durable, waterproof, and tear-resistant. Equipped with adjustable shoulder straps, a chest buckle, and a handle for easy carrying. Best backpack gift: Unisex, a perfect gift for teenagers and adults; suitable for all ages, suitable for various occasions such as school, shopping, travel, work, and meetings. This backpack can accompany you everywhere, and its elegant and fashionable design ensures that you attract attention. It is also a great gift for birthdays, Valentine's Day, and festivals for girls, girlfriends, women, children, and teenagers. Multifunctional bag: Our large backpack can be used as a school bag, travel bag, casual backpack, hiking backpack, shoulder bag, etc. Durable and suitable for daily use, suitable for going to and from the office and school, dates, weekend shopping trips, excursions, and other outdoor activities.