Atlas went all out on their slate look shingle integrating some very impressive technology. To start with this is an SBS impregnated shingle which is very common among storm rate or impact resistant shingles such as this. It also adds to the expected lifespan as SBS does not break down as quickly as standard asphalt only shingles. Clipped edges give a little flair to really a quite flat shingle design. Add brand name algae resistance from Scotchgard and this shingle has basically every feature you could ask for. Decent color selection as well. Remember this is a pretty flat laying shingle though so do not expect thick shingles.