A smart bag inside and out! This carry-on is equipped with a USB port and a power bank sleeve to power up devices on the go (power bank not included). It also features dual-density spinner wheels for superior mobility and a built-in TSA-accepted lock for optimal security. Plus the interior lining is removable and washable so you can keep the inside of your bag fresh for your next getaway. Fits in the overhead compartment of most domestic airlines. Lightweight: Constructed of 100% polycarbonate, lightweight and impact-resistant material for long-lasting use USB Port: Exterior USB port and power bank sleeve inside the bag (power bank not provided), so you never run out of power on the go! Four Spinner Wheels: Dual-density spinner wheels provide maximum durability while making your ride comfortable and quiet TSA-Approved Lock: A TSA-accepted combination lock keeps your belongings safe while allowing the Transport Safety Authority (TSA) to open your luggage using a special key, without damaging it Expandable: Expandable roomy interior offers two packing compartments with elastic straps and a mesh divider No longer worry about spills or dirt inside your bag! Expands 1.5 inches. Removable Lining: The lining can be removed and machine washed on a delicate cycle for maximum convenience Convenient Handles: Three carry handles - on the top, on the side and at the bottom - provide maximum convenience when lifting a fully packed case 5-Year Limited Warranty