The Los Alamos, from Stetson's Outdoor Collection, is a versatile hat made of sturdy, stiff Shantung straw and features a substantial 3" brim for protection from the sun. Its perfect for a walk through town or a sunny hike in the outdoors. The Los Alamos has side vents and a inner sweat-wicking band for your comfort and features an adjustable chin strap to keep this awesome hat firmly planted on your head in a stiff breeze. It is finished with an attractive leather hat band.