6 Layer Carbon LinedThis travel backpack with twice the amount of activated charcoal filter lining to lock odors in, the best choice for odourless storage solution. ^^ Medium Capacity Backpack22L air flight approval backpack Spacious interior with organized compartments for clothes, gadgets, and travel essentials. Adjustable straps ensure comfort during long journeys ^^ Secure Combination LockComputer back pack come with an adjustable lock, ensures privacy and security for valuables like IDs, electronics, and sensitive items ^^ Double waterproof zipperMens business backpack main compartment with double waterproof zipper to prevent any smell leak ^^ Fits 15.6 inches laptoplaptop backpack with thicker foam padded pocket Fits 15.6 inches laptop and notebook ^^ Waterproof material MZIPLINE Smell Blocking backpack made of high-density coated oxford fabric not only waterproof and resistant but also scratch-resistant