The lacrosse cooling towels are the perfect way to get body temps down when things head up. Basically it's mad science here people.... Get the towel wet and as the water quickly evaporates off of it, the towel cools. Back of the neck, top of the head.. use these towles for games tourneys or practice. All you need is a bottle of water anywhere, anytime and you can cool down your core no matter what the weather. McDavid makes the good stuff FYI.