We've got a couple of ways to keep cool in hot weather. We've designed some of our outerwear with underarm grommets for venting. This gives you airflow, keeping you cool and stopping perspiration and moisture from building up. If you want a blast of cool air, then you want zippered vents. You'll find these on some of our jackets. When the ride heats up, unzip the front and back vents and let the wind cool you down.