Perfect for early morning runs, late night training sessions or doing whatever else it is that drives you come summertime, the cooling performance hat was built so you can do more. Lighter than it's lifestyle counterpart and with a non-structured fit to afford you maximum breathability gear up and get ready to do all-things performance. With a much needed high-tech spin on traditional headwear, we applied proprietary technology which cools instantly when wet. And activating the hat's cooling properties is simple. Just sweat it or wet it. Then, wave the hat in the air a few times to promote airflow through cooling zones in the front panels. The hat's cooling technology reduces the rate of evaporation for a prolonged cooling effect. So, now when you wear your new performance hat you'll almost forget it's there ? at least until you get moving. Secure the fit with an adjustable hook and loop closure. One size fits most.