When summer hits its most sweltering temps, some stay inside and wait for the heat wave to pass. Others pull on the Gore Bike Wear Women's Xenon 2. 0 Singlet and chart a course for the swimming hole twenty miles up the road. The Xenon's lightweight, quick drying fabric makes it a favorite for sweaty summer rides, especially when those rides involve a little extracurricular cool off time. The full length zipper makes it easy to add even more ventilation, and the sleeveless cut mitigates strange cyclist tan lines.