The Ecopia EP20 is one of Bridgestone's ecologically oriented, ultra-low rolling resistance Passenger All-Season tire developed to match the Original Equipment (O.E.) needs of third generation (2010+) Toyota Prius hybrids, as well as for the drivers of other small cars using the P195/65R15 89S size looking to reduce their vehicle's fuel consumption and carbon dioxide emissions while retaining all-season traction. The Ecopia EP20 is designed to accommodate dry, wet and wintry conditions, including occasional light snow.The Ecopia EP20 combines traditional energy efficient tire technologies (low rolling resistance tread compound, narrow tread width, shallow tread depth and optimized internal construction) to maximize vehicle efficiency and driving range.*Specific sizes featuring Ecopia technology are identified as such on the Sizes tab, as well as on the tire's Specs tab. Related Information: Bridgestone Ecopia Low Rolling Resistance Technology