A 100% natural cotton developed for British R.A.F. pilots in World War Two, Ventile is versatile and one of the more sensible outdoor fabrics, perfect for a hat. Amazingly, Ventile is not coated or laminated, but yet still offers the same advantages of a modern technical fabric: it is waterproof, windproof, durable, quiet, breathable, and is resistant to tearing and burning. Our Ventile Cap is made in the USA, it is emblazoned with the Best Made X, and will be one of the more comfortable hats to grace and protect your head.