5.11 Two Day Tac Bag has two main compartments and four zippered compartments. This Two Day Tac Bag comes with concealed backpack straps. It is made from 1600 Denier nylon. This Two Day Tac Bag is perfect for a weekend trip whether it is for business or pleasure. This bag measures 20 inches byt 6½ inches by 12½ inches so you can use it as a carry on for airline travel.