A modern remaster of the original Tilley Hat. Tilley The Iconic T1 boasts a great everyday fit. Handmade from a durable, naturally breathable cotton duck fabric it offers not just the highest sun protection rating but is lightweight and well ventilated to keep you cool. Choosing the correct sized Tilley Hat In order for you to get the best from your Tilley Hat it is very important that it be properly sized - go to Size & Fit for a full sizing guide.