The Arc'teryx Silex Cap is an ultralight hat for hiking. Designed for spending more time outdoors, the Spacermesh sweatband wicks sweat and dries fast, preventing it from dripping down towards your eyes. The brim shields the face from the sun, and the adjustable snap back dials in the fit to your personal preference. This cap is so light it breathes, plus it is water-repellent to keep off a light drizzle.