An all-season, self-supporting run flat tire, the Bridgestone B380 RFT is designed specifically for use on the Toyota Sienna minivan. The B380 RFT was developed to provide extended mobility when flat and provide reliable traction for every season, even in light snow. The B380 RFT features a symmetric siped block tread design that uses an all-season tread compound to provide stronger traction on dry, wet and light snow-covered roads. Twin steel belts reinforced by a layer of nylon in the B380 stabilize the tread area while a rayon cord body helps resist the punishment of being driven on while flat.
