The Tilley T3 Cotton Duck Medium Brim Hat features snap-up sides that offer extra stability in windy conditions.It features a high crown and grommets for ventilation and a semi-sloping brim for sun and rain protection. Made from cotton duck to give strength and durability, it also features UPF 50+ sun protection. A front and back wind cord system secures the hat in gusty conditions and a hydrofil sweatband wicks away moisture.The ultimate hat for any outdoor activity. Tilley T3 Cotton Duck Hat - Olive