Carry-on travel backpack with detachable shoulder strap and waist strap Top and bottom carry handles for easy lifting Side compression straps with buckles Backpack can piggy-back over luggage handles Size: 21" H x 14" W x 6" D Harley-Davidson Silverado Carry-On Backpack - Black, 90225 BLACK. Carry-on travel backpack with detachable shoulder strap and detachable waist strap for easy-to-go wear. Top and bottom carry handles for easy lifting. Side compression strap with buckles. Expandable sides up to 2 inches. Compartmentalized interior with main luggage section for travel packing and separated laptop section. Comfort cushioned back with hideaway backpack straps and sternum strap. Backpack can "piggy-back" over luggage handles. Beautifully coordinated black body with silver zippers. Size 21" x 14" x 6". Note: 21" size can be carried on board most commercial airlines.