Waterproof: The backpack is made with water-resistant or waterproof materials to protect your electronics and other items from rain or accidental spills.
USB: Likely features a built-in external USB charging port for convenient phone charging on the go (requires a power bank inside, usually not included).
Laptop Backpack: Designed with a padded compartment to safely carry laptops (typically fits up to 15.6" or 17" laptops, depending on the model).
Unisex (Men/Women): A neutral style suitable for anyone.
Anti-Theft: May include features like hidden zippers, lockable compartments, or secret pockets to deter theft.
30L Capacity: Medium to large capacity, good for daily commuting, travel, or school.
Travel/School Rucksack Bag: Versatile design usable for multiple purposes like travel, school, or work.