Versatile 2-in-1 Travel BackpackThis rolling backpack features an aluminum alloy rod, non-slip wheels, and detachable shoulder straps, easily transforming from a backpack to a carry-on suitcase. Perfect for all types of travel, including weekend trips and business travel. ^^ Vacuum Bag for TravelNo need to prepare a vacuum seal bag for travel, the design of the embedded vac pack not only effectively prevents dust and water from entering, but more importantly, it can save a lot of space to store more items. Place the clothes into the vacuum compression bag(Note: Please read the attached "How to Open"instructions before first use. ), The vacuum bags for travel with an air pump, Excess gas inside can be removed by opening the air valve. ^^ Vacuum Pump and Anti-theft LockThe vacuum pump has different nozzles that can be used in different scenarios. It also has a light that can provide you with lighting when traveling at night. In order to make your travel safer, the Vacuum backpack adopts TSA customs anti-theft design. You can better protect the items inside your back pack vacuum and reduce the possibility of loss. The password operation setting of the TSA customs combination lock is very simple. ^^ 50L Capacity Rolling Backpack 20.5 x 13 x 9.9 inch/ 52 x 33 x 25 cm, weight: 6. 3lb ( Heavier than standard backpacks), The fabric is made of high-quality Oxford, Water-Resistant, this backpack with wheels is both stylish and sturdy, complete with a smooth aluminum telescoping handle and reliable dual-way metal zippers. Both the shoulder straps and carry handle feature soft padding for added comfort. ^^ Dry and Wet SeparationThis compression backpack has a dry and wet separation storage area inside, so you don't need to prepare your toiletry bag separately. The dry and wet separation area can effectively prevent moisture and odor from flowing, and toiletries and worn clothes can be stored separately, allowing items in other areas of your vacuum air bag travel backpack to remain dry.