The LUXE Air Vest combines a protective front shell with high-loft active insulation and a fleece back panel, folding two layers of protection into something that wears like a single jersey. That zoning lets the vest block wind up front while venting heat out the back, so warmth never comes at the cost of breathability. What Our Gearhead(R) Experts Are Saying:"I started a cold morning ride fully zipped and never had to stop to shed a layer once the effort picked up. The back stayed cool while my chest stayed protected the whole way through."