Polymer Materials: The material of the laptop rolling bag is made of 420D embossed Oxford cloth PVC base, which is highly stable. It is made of durable frames and high-quality waterproof fabric. With a compact combination lock, it enhances security | 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 | Aircraft-certified Size: The dimensions of this rolling laptop bag are 17.3" x 15.7" x 8.3", 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 laptop Sleeve: The spacious main compartment can accommodate overnight clothes, documents, and other daily essentials, and comes with a removable 16.5-inch padded laptop sleeve for convenience during airport security checks. Additionally, it features a waterproof pocket, a storage pocket, a side water bottle pocket, and a front compartment for items such as pens, business cards, and mobile phones | 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