Arc'teryx Silex CapWhether you're ducking the scorching desert sun of Indian Creek or cruising Squamish granite boulders in a light drizzle, the Silex Cap blends an unstructured style with serious climbing performance Its nylon spandex plain weave delivers a sleek, button free look with bold graphics, while the internal mesh sweatband ensures all day comfort and moisture controlkeeping you cool through the hottest days and longest pitches.