170 massive grams of two-layer, body-mapped insulation makes the Men’s PRO HD Hoodie our warmest puffy concept ever conceived, capable of laughing down Old Man Winter’s attempts at sending you scrambling for the truck heater. The exceptional heat regulation begins across the body and hood, with 170g of legendary PrimaLoft® Gold insulation for optimal loft and warmth retention. That design philosophy continues across the arms and back with stretchier PrimaLoft Gold Active insulation added for slightly different intent: Exceptional warmth and mobility during any athletic movement.Think of it as a cold-weather garment that moves as you move, fully windproof and with superior water resistance in the event you’re caught off-guard by a wet, angry sky. Even the pocket configuration has been rethought, with two zippered fleece-lined lower pockets and a second set of fleece-lined upper pockets welcoming chilled hands when in waders or bibs. This is, by far, the burliest, deep-winter puffy ever made with technical aspects that border on the unreal. Active fit.