Riding on gravel often means a little bit lower speeds at a higher effort level, so breathability becomes even more important and you can dress a bit lighter. Our Unlimited Thermal Jersey features our Warmer brushed fleece fabric, which provides a high level of insulation while letting just the right amount of air through for ventilation without causing a chill. We keep this piece very functional with the three rear pockets and a silicone gripper at the waist, while the YKK® Vislon® zipper is the easiest sliding we've ever found, so it's quick to adjust as your temperature changes.