What Our Gearhead(R) Experts Are Saying:"I like the Summer Cap Foil P1 for really warm days when I want something light under my helmet. It fits low and smooth, manages sweat well, and doesn't bunch or trap heat. It's subtle, comfortable, and easy to forget it's even there."We reach for the Summer Cap Foil P1 when the sun is high and the miles keep coming. It adds just enough protection and sweat control to stay comfortable on long summer rides, without adding bulk or distraction under a helmet. Designed for hot conditions, the Summer Cap Foil P1 uses a lightweight, breathable construction that promotes airflow and quick drying. The low-profile fit layers cleanly under helmets, while the minimalist design keeps things simple and functional. It's an easy choice for warm-weather riding where comfort matters most.