The LUXE Thermal Long-Sleeve Jersey pairs an open waffled interior with a tightly woven face fabric, circulating air against the skin while blocking cold on the outside. A 75% polyamide, 25% wool blend adds thermoregulation that holds up whether it's worn alone in the upper 40s or layered under a vest closer to freezing. What Our Gearhead(R) Experts Are Saying:"I wore this solo on a 50-degree spin and never felt overdressed, then threw a vest over it a week later at 38 degrees and stayed just as comfortable. That's the range doing real work, not just a number on a tag."