IKO Dynasty performance shingles are engineered to resist high winds and carry a limited high-wind warranty coverage for winds up to 130 mph (210 km/h). They have a standard asphalt coating embedded with blue-green algae-resistant granules that help resist the black streaks and discoloration such algae colonies can cause. Available in a choice of eleven high-definition color blends. It’s also manufactured in IKO’s special “Advantage” size. That means it’s larger than most competitors’ comparable product, which is a huge plus.