HIGH-QUALITY MATERIALS: VANKEAN rolling bag is made of water-repellent nylon fabric. Dimensions: 16.5"x14.5"x8"; Weight: 6.33 LBS. The maximum length of the telescoping handle: 25.65 inch. Fits in most airline overhead compartments and meets most airlines' carry on bag size requirements. Regarding whether it is fit under seat, you need to confirm the airline's rolling bag size requirements before purchasing. MULTI-FUNCTIONAL COMPARTMENT: VANKEAN rolling laptop briefcase has 2 main roomy compartments that provide separate space for your 15.6” Laptop and all your items. The padded laptop compartment offers perfect protection for your laptop. The front pocket organizes your iPad, or tablet. The zippered pockets at each side can hold your umbrella, water bottle, etc. Make it easy to use this case as a carry-on for an overnight business trip. RFID DESIGN: Anti-theft design frequency identification blocking technology in organizer pockets lined with thin shielding fabric to help block radio waves from being transmitted from U.S. Passports and certain credit/ debit cards. DURABLE & USER-FRIENDLY DESIGN: VANKEAN rolling laptop bag has metal zippers and waterproof bottom panel corner guards and a kick plate; durable aluminum telescoping handle accommodate users of different heights. EASY TO CARRY: Push-button telescoping handle and 2 quality silent wheels allow for more comfortable travel. The telescoping handle retracts into a zippered compartment when not in use.