The NOMATIC Travel Duffel Bag 40L converts from duffel to backpack and opens wide, so clothes, shoes, tech, and travel essentials are easy to pack and find. Use it when you need carry-on capacity rather than an under-seat personal item. Removable waist straps, a TSA-ready laptop sleeve, shoe storage, waterproof bottle storage, and a custom laundry bag keep the trip organized from departure to return.