The B381 steel belted radial is a Bridgestone Passenger All-Season tire developed for the drivers of small family sedans. The B381 was designed to enhance vehicle fuel economy and provide year-round traction, even in light snow.  

The B381 molds an all-season compound into a notched and siped symmetric rib tread design to grip dry, wet and light snow-covered roads. The tire's internal structure features twin steel belts to stabilize the tread area and a polyester cord body to help cushion the ride.