Tilley T4MO 1 Hikers Sun Hat 6841-T4MO-1-GREY Designed for the avid hiker, our innovative Hat comes with lots of features for the trail.Our sun-protective Hiker's Hat is designed with an evaporative cooling insert, powered by HyperKewl™, to help relieve heat stress during treks. A rear brim loop provides a place to securely clip your Hat in place when not in use. These unique features, plus all the usual Tilley® Hat benefits make this the ultimate Hat for the trail. California Residents WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov Tilley T4MO 1 Hikers Sun Hat