Polymer Materials: The material of the laptop rolling bag is made of Made of 272T polyester multilayer fabric offers water.The bag body can be detached from the trolley for use, with the bottom secured by ultra-strong Velcro, and the trolley at the bottom is also foldable for easy carrying | Multi Functional Compartments: Rolling briefcase for women with Spacious multi-layered compartment design allows for clear categorization of items，Accommodates a 15.6-inch laptop, iPad, files, wallet, notebooks, clothes and all your items. Padded laptop compartment offers perfect protection for your laptop from accidental bumps and shocks | Aircraft Certified Size: The dimensions of this Rolling Briefcase are L/17.5" x W/5.5" x H/13.5", weighing at 4.85 lb,Maximum length of the telescoping handle:22 inch，suitable for most airlines' overhead compartments and meet the size requirements for carry on luggage. It is compatible with under-seat storage. The rolling computer bags is an ideal choice for business men and women traveling on business trips | Removable Swivel Wheels: This rolling briefcase with wheels is equipped with 4 detachable wheels, a telescopic handle, and a sturdy handle, allowing you to choose between pulling and rolling or carrying by hand during travel/business trips, and switch according to the environment at any time | Multi Functional Rolling Briefcase: This rolling computer bags is a must-have for travelers on business trips. It is ideal for travel, overnight stays, daily commuting, weekend getaways, and vacations. It makes a great gift for commuters and frequent travelers