EL Jefe Hats VA-40 Vaquero (Cowboy) Hat - This Vaquero (Cowboy) Hat is sure to provide style while protecting you from outside elements. The 100% palm leaf construction is able to naturally wick away moisture and sweat, keeping you cool during outside activities and harsh weather conditions. Tight weaving provides durability and sun protection while a ventilated pinched gus crown allows for additional headroom and breathability.