They were combined to make this model and they provide extra traction in dry, wet and winter conditions. It performs well year-round, and it will not lose its road gripping ability in the colder winter temperatures. In fact, the Maxi Siper Technology, with the delicate tread pattern and all season compound, provides the tire with additional biting edges to boost its winter traction. The aqua-chute and the circumferential grooves channel water from the footprint of the tire, improving the tire's hydroplaning resistance.