What Our Gearhead(R) Experts Are Saying:"I wore this on a cool ride where the temperature sat right in that in-between zone, and it kept me comfortable start to finish. The fleeced side panels and sleeves gave me full range of motion in the drops, and the gripper waist meant it never rode up once I got moving."Cool weather rides live in a tricky zone, warm enough to overheat in the wrong layer but cold enough to punish the wrong choice, and Castelli built the Prismatic Thermal Long-Sleeve Jersey to solve exactly that. We love zipping this on before a ride where the forecast sits in the 14 to 18 degree range, trusting the 3D knit body to hold warmth while high stretch sleeves let every position on the bike feel natural. The moisture management built into that main body fabric keeps things comfortable as effort rises, while three rear pockets carry everything needed for a longer loop. A gripper elastic waist and easy-sliding YKK Vislon zipper round out a jersey that stays put and moves easy from the first pedal stroke to the last.