HW Heavy Weight 1000 denier tough-as cordura nylon material. Better than military specification. top quality craftsmanship, detailed construction, improving every last detail. Zipper closure. Bag contains reinforced foliage strap handles for easy carrying. Easy to store. Small size makes it great for maneuverability. This aviator crew bag is a perfect accessory for traveling. It will almost always be allowed on a flight as a carry on luggage.