Sonik Xtractor Sling Bag If you are planning a trip where you don’t need an incredible amount of equipment, then the Xtractor Sling Bag is an excellent choice. Nevertheless, it is equipped with many pockets and other storage options. This includes a flexible side pocket for a water bottle. This overall package makes this bag ideal for the angler who likes to travel light and mobile. Shell: 100% polyester, lining: 100% polyester, padding: 100% polyethylene.