Stearns Women's V1 Series Hydroprene Life Jacket Even people who love an adrenaline rush need backup, so buckle into the Stearns Women's V1 Series Hydroprene Life Jacket and enjoy your adventure. Whether you are riding a wake or swimming a mile, the v-flex sculpted back design is going to move comfortably with you. The Stearns V1 series hydroprene has a revolutionary v-flex design that makes it the most flexible PFD ever for the water sports professionals. This coast guard approved life jacket uses high quality hydroprene shell construction with PVC foam. Whether you are out skiing, wakeboarding or tubing, the Stearns Women's V1 Series Hydroprene Life Jacket is exactly what you want when you're trying to twist, turn and perform tricks on the water.