Keep the sun out of your eyes with a running cap
Sports caps come in many different shapes and sizes, but they are all made to keep the sun out of your face during exercise. By giving your face this rest, the muscles in your face remain relaxed, which contributes to a saving in total energy consumption and also to your comfort as an athlete.
There are caps in the trucker cap style, which means that they have a ventilated part, with both a flat and curved visor and then there are caps without a ventilating part. In addition, there are the widely popular sun visors, which have an open top to give your head just a little more ventilation.