The Tilley LTM5 Airflo Hat is a ventilated summer hat ideal for hiking, camping and backpacking. Airflo Technology uses mesh panels to create air flow through the hat, allowing the cold air in and letting the hot air escape. These hats sit higher on your head preventing the holes from being blocked, allowing the air to flow freely. The bluesign system is the solution for a sustainable textile production. It eliminates harmful substances right from the beginning of the manufacturing process and sets and controls standards for an environmentally friendly and safe production. This not only ensures that the final textile product meets very stringent consumer safety requirements worldwide but also provides confidence to the consumer to acquire a sustainable product. The garment has a sun protection rating of UPF 50+, protecting you from damaging UV rays when outdoors, making it an ideal option for travel wear. A DWR (Durable Water Repellent) finish provides a water resistant coating to help water bead and run off the fabric, helping you to stay dry and stop the fabric from absorbing moisture. Supplex Nylon is a nylon fabric with a Polyurethane (PU) membrane. The PU membrane creates a fabric which is windproof and waterproof and will protect you in all kinds of weather conditions.