Lovevook 4 piece 40/50L Freyja travel backpack 18 inches airline approved size, Easy carry-on. TSA friendly design, opens 180° like a suitcase. Includes three packing cubes for shoes, cosmetics and socks. Wet separation pocket for toiletries and wet clothes. Separate laptop compartment, fits up to 18 inch laptops. Four compartments make your items well organized. A side pocket fits water bottles or umbrellas. Hidden back pocket for anti-theft protection. Back with luggage strap. Thickened handle design, comfortable for both sides and top carrying.