The product is a Williams Martini Racing F1 hat autographed by Felipe Massa and Valteri Bottas. The hat is blue and white in color and is one size, making it suitable for men. This unique item is a must-have for fans of Formula 1 racing, especially supporters of the Williams team and drivers Felipe Massa and Valteri Bottas. The signatures add a personalized touch to this stylish cap, making it a prized possession for any racing enthusiast.