Unusually for a thermal long sleeve, the Woolf is both lightweight and breathable, thanks to Q36.5's tech-merino fabric blend, which provides stellar thermoregulation and warming even when wet. Think descending after a challenging climb or chasing sunsets home in the golden light of fall - moments where you need a little more from your jersey. And if the weather changes for the worse, Woolf's water repellant finish will keep light rain off your back.

Three rear pockets and a zippered fourth provide plenty of space for snacks and supplies. A snug fit throughout helps hold off the onrushing air. Eye-catching reflective accents complete the piece.