This is the go-to hat for most racing and speed touring. It’s basically the Dynafit Performance headband with a light mesh lid covering the top of your head. The mesh traps about half your heat which is about perfect when going fast. It’s super thin so fits easily under a helmet. Your ears are covered by a soft brushed lining that prevents frostbite without risk of overheating. The cap is made of 80/20 polyester/spandex that provides moisture wicking and a comfortable stretch fit for most heads. Weighs 23g (0.8 oz)