Mizuno 2015 Warmalite Hayate Golf V-Neck Sweater Fully Lined Winter Jumper -Windproof Machine washable. Mizuno Warmalite Hayate. Windproof membrane protects core body temperature. Flexible lining Windproof. Merino Wool, superior hand feel. Windproof drop liner to minimise the need for additional outer layers in dry conditions.