We started with the dynamic stretch and breathability of the award-winning Fernos Insulated Hooded Jacket—then packed in the warmth with a thicker construction of the original’s synthetic PeakFill® Active Insulation. It stretches more, dries quicker and breathes better than traditional lofted insulation. Outer protection comes from dynamic Relance™ Primeflex microfiber that wears with a soft hand and resists the elements with a PFAS-free water-repellent finish. We mapped the insulation for more warmth in your core and less bulk in the arms, with underarm zipper vents to dump heat when you need to. A two-way YKK® front zipper creates easy access to pockets or layers, while the adjustable hem seals out the cold. The fixed hood has a stretch binding that stays snug and easily adjusts. Plenty of zippered pockets keep the essentials secure, with an inner security pocket, zippered chest pocket and handwarmer pockets.