Polylast Bunker Liner is thin and flexible so it can easily contour to the curves and slopes of your bunker. It is also extremely durable, even in extreme temperatures. Polylast Bunker Liner retains it’s flexibility and tensile strength in temperatures as low as -40 degrees Fahrenheit, making it a perfect bunker solution for golf courses in locations that have very cold winters, and experience freeze / thaw cycles. This video demonstrates Polylast Bunker Liner’s flexibility, even when frozen in ice.