What Our Gearhead(R) Experts Are Saying:"I wore the GOREWEAR Concurve WS Insulated HD Jacket on a string of cold and blustery winter run mornings and the hooded construction combined with the WINDSTOPPER ePE membrane made it the first insulated running jacket I have ever worn that genuinely handled head-on wind without making me feel overheated once the effort picked up. The PrimaLoft Active Evolve insulation adapts so well to changing intensity that temperature management stopped being something I had to think about entirely."When the temperature drops, the wind picks up, and the hood needs to come out, the GOREWEAR Concurve WS Insulated HD Jacket is the answer waiting in the closet. This ISPO award-winning hooded running jacket builds on the Concurve WS Insulated platform with the addition of a hood, creating a fully enclosed cold weather running solution built around the new WINDSTOPPER ePE membrane by GORE-TEX LABS and PrimaLoft Active Evolve insulation. At 10. 3 oz in a construction made entirely from recycled nylon and polyester materials, it delivers maximum cold weather coverage at a weight that never becomes a burden on the move. The WINDSTOPPER ePE liner by GORE-TEX LABS handles wind at the membrane level, blocking it completely while remaining reliably breathable so moisture vapor clears efficiently as effort climbs. PrimaLoft Active Evolve insulation is the thermal engine, developed specifically to adapt its output across a wide range of activity intensities and seasons so warmth stays calibrated whether the run is easy or hard. The thin, durable 2-layer laminate construction keeps the overall package light and close-fitting, and an air-permeable face fabric ensures the breathability stack functions across the full jacket from collar to hem. The hooded design adds full head and neck protection that a standard collar cannot replicate, making this the jacket that handles the coldest and most exposed running conditions in the GOREWEAR lineup with authority.