A cedar shake look shingle with lots of technology built in. As with all Malarkey shingles the NEX™ polymer modified asphalt technology is the base. While we always loved the SBS base shingles from Malarkey this new technology seams an evolution of that, time will tell if it's as good or better. Additionally those smog reducing granules are included - which is awesome technology to help clean the air! Amazingly you can get up to 140mph wind resistance and Class 4 impact resistance certification. The XL version of this is 20% thicker but has the same profile. Both are great the XL is a bit better.