Lekeinchi Rolltop Backpack Waterproof for Women & Men, Large Laptop Backpack with Compartment for 17 Inch Laptop, Elegant Travel Daypack for Travel, Cycling, Uni School, Work-Green.

["FLEXIBLE STORAGE SPACE: Normal size: 12 * 5 * 17 inches, expanded size: 12 * 5 * 22 inches. The rolltop design makes this bag very adaptable (16 liters to 20 liters) and can be adjusted to your space needs. The spacious main compartment with a padded laptop pocket provides space for a 17" laptop, change of clothes, books, water bottle, and more","PRACTICAL: The expandable travel backpack has a zipper opening on the back for quick access to your belongings. Reflective straps provide safety at night and can also be used to hang sunglasses","WATERPROOF AND DURABLE: This laptop backpack is lightweight and durable, made of waterproof and tear-resistant matte polyurethane fabric on the outside and waterproof lining on the inside, suitable for long-term outdoor activities. All stress points are reinforced for durability","COMFORTABLE TO CARRY: The back and wide shoulder straps of this stylish travel bag are made of breathable mesh fabric and well padded to ensure maximum comfort on the back and less burden on the shoulders. Even when carrying heavy loads, this travel backpack is easy to carry","VERSATILE USE: This rolltop backpack is both stylish and practical, perfect for work, cycling, camping, traveling, weekend getaways, or studying. It is a perfect gift for ladies and gentlemen"]