The Cooper Discoverer H/T Plus All-Season 255/55R18 109T Tire is an all-season highway sport truck tire for drivers of SUVs and light duty pickup trucks looking for a ‘sporty' look. The Cooper Discoverer H/T Plus comes with additional rubber in the sidewalls to help protect rims. It is designed with circumferential grooves in the tread for continuous and efficient slush and water evacuation. The lateral siping and grooves in the tread effectively conducts water away from the contact area while combating irregular wear. The alternating tread block geometry provides stability for confident handling and reduces irregular wear for longer tread life and a quieter ride.