Ultimate Performance Runner Hat The Ultimate Performance Runner Hat is specifically designed to keep both the head ears warm and protected while you run. Fitting comfortably over the ears, the hat provides a nice, snug fit. The Ultimate Performance Runner Hat is specifically designed to cover the head and ears which is ideal in cool, wintry conditions when you are running. The hat works to resist rubbing and abrasion to protect against distraction or discomfort. Moisture management is encouraged thanks to the inner, which wicks away the build up of excess sweat and moisture to leave you cool, dry and comfortable. A full range of motion is provided by the ear warmer so you remain focused as you strive for the best results and performance during your workout.