The Encounter AT is Sumitomo's On-/Off-Road All-Terrain tire developed for drivers of pickup trucks, crossovers and SUVs who want go-anywhere capability and durability combined with confident all-season traction, even in snow.Utilizing a rugged, all-terrain compound molded into a purposeful pattern, the Encounter AT is designed to perform on any surface. The open tread design features stepped edges on the center blocks for added bite in loose terrain, and the open shoulders employ connecting ribs for improved stability. Four wide, circumferential grooves effectively evacuate water from the contact patch for confident grip where standing water is present, and in-block sipes create the additional biting edges needed for traction on slippery surfaces. Winter-focused zigzag sipes in the shoulders and the independent tread blocks work together to provide snow traction. All tires in the Encounter AT lineup meet the industry's severe snow service requirements and are branded with the three-peak mountain snowflake (3PMSF) symbol.The Encounter AT's internal construction consists of a two-ply polyester casing beneath two wide steel belts. A spirally wound reinforcement adds increased support for enhanced stability and ride comfort.Note: While non-winter tires featuring the three-peak mountain snowflake (3PMSF) symbol provide additional longitudinal snow traction beyond what all-season (M+S) tires not bearing the symbol can deliver, they do not match the capability of a true winter tire in all adverse weather conditions. Related Information: What is the three-peak mountain snowflake symbol (3PMSF)?