The Q36. 5 Dottore Woolf Long-Sleeve Jersey solves a problem most thermal layers create: warmth that turns into overheating the moment effort picks up. A tech-merino blend of wool, polyamide, and elastane holds heat when temperatures drop and keeps regulating it once sweat sets in. That balance suits the exact moments fall and early spring rides create, cooling off after a hard climb, then working to stay warm again as the sun drops on the ride home. A water-repellent finish covers the version of that ride where the weather turns before the daylight does. What Our Gearhead(R) Experts Are Saying:"I've come off a sweat-soaked climb and stayed warm through the entire descent that followed, no extra layer required. It's the only long sleeve I've kept on into the next climb too, since it never turns clammy once the effort picks back up."