Additional Information Hankook DL15+ The Smart Way verified Smart Flex DL15+ offers fuel efficiency and optimized traction performance for long and regional haul applications. Highlights Main four zigzag grooves deliver great traction performance Combined structure of rib and semi-block pattern provides excellent stability, which enhances both handling and fuel efficiency Wide closed shoulder enhances stability and fuel efficiency, allowing smooth wear 3D sipes deliver even wear and optimized traction performance by reinforcing the interlocking between blocks Bottom round edge sipes prevent cracks and tearing