96% POLYESTER/ 4% ELASTANE. H&B LIGHTEST AND MOST BREATHABLE VEST STYLE. THE VENTURA WAS ENGINEERED SPECIFICALLY FOR WARMER WEATHER. THIS STYLE UTILIZES INNOVATIVE AIRATION PERFORATED FABRIC THAT PROVIDES STRETCH FOR THE GOLF SWING AS WELL AS HIDDEN ZIPPERED CHEST AND SIDE POCKETS FOR ULTILITY. TONAL H&B ICON ON BACK COLLAR.