With a lifetime guarantee due to Tilley’s unrivalled quality in hat construction, the Airflo Hat is sure to be your companion for many adventures to come. Built for all weathers, a mesh insert around the crown provides much needed ventilation in warmer climates and when the rainclouds appear the Airflo has been treated with a water repellent finish, preventing the rain from saturating the fabric and ruining your day. Tilley notice the importance of safety and have included a secret pocket to keep valuables safe at all times. Other handy features also include a Hydrofil sweatband, attaching the hat and wicking away the unpleasantry of excess moisture on your face and a wind-cords that secure your treasured hat in blustery conditions. For Sizing information, please refer to images. Care: Machine wash delicate or hand wash. Re-shape by hand. Air dry. Do not bleach. Wash it frequently or non-removable sweat stains will mar it & possibly rot it.