DetailsLouis Garneau Women's Size Chart Want to be faster? Be more efficient! Staying cool saves your body a lot of energy, so you can put it where it really counts: into every pedal stroke. The Zircon 2 offers exceptional moisture management and breathability, with its strategically placed mesh panels (including one that runs all to the back), and great UV protection to keep you cool and protected from the sun. Reflective logos and pocket trim help keep you visible on the road, the Zircon fabric's 4-way stretch makes for an excellent fit, and the silicone strip on the bottom hem keeps the jersey in place.