The Geolandar X-AT is Yokohama's On-/Off-Road All-Terrain tire for the drivers of pickup trucks, full-size SUVs, Jeeps and dedicated off-road vehicles who want a tire designed to blend the off-road capability and durability of a maximum traction tire with the on-road manners of an all-terrain tire.Yokohama's HD-2 Off-Road Compound utilizes a Triple Polymer Blend for enhanced cut and chip resistance plus long-lasting wear. The innovative compound is molded into the aggressive, symmetric pattern of the Geolandar X-AT that features a Five Pitch Block Variation to help reduce drone and road noise for a quieter ride. ZigZag grooves are designed to disrupt airflow between the tread blocks to help further improve sound quality. Combination Grooves consist of sipes and narrow grooves in each block and are designed to provide wet weather traction, in addition to in snow and on slick rock. Angular, offset center blocks are engineered for strength and grip in challenging terrain, while the aggressive shoulder features varying length blocks to help with mud traction and stone ejection. Thick, over-the-shoulder sidewall protectors guard against punctures and impacts, and with a different design on each side, provide drivers the option to further customize their vehicle by mounting either the "Mesa"or "Summit" sidewall facing outward.Geolandar X-AT tires utilize Yokohama's Geo-Shield™ Construction. Three polyester body plies wrap around a strong, hexagonal bead to form the tire's casing and create an elliptical contact patch that provides a balance of off-road traction and long, even wear. Two high-strength steel belts support the tread and are reinforced by a full-width nylon cap for further added durability.