Dynapro At2 Extreme. Tough in all terrains. The Dynapro AT2 Xtreme is Hankook's On-Road All-Terrain tire developed for drivers of pickup trucks, Jeeps, crossovers and full-size SUVs looking for a capable blend of off-road competence and on-road comfort and stability. Built for versatility and traction no matter the condition, the Dynapro AT2 Xtreme gives the confident light snow traction that comes from being marked with the three-peak mountain snowflake (3PMSF) symbol. *By request/order.