Wide circumferential grooves ensure water drainage and improved wet performance, Improved grip and biting edges for all-season performance, Increased tread pattern stiffness for improved handling and cornering, Reduced tread pattern noise for a quiet ride, Protects the wheel from curb damageM + S, Tread Grooves, Full Depth Sipes, Large Shoulder Blocks, Variable Pitch Tread Blocks, Rim Protector