Warm up without feeling weighed down. Our proprietary LifaLoft insulation is lighter and warmer than standard insulation. The Kensington Winter Jacket features both the LifaLoft technology and Black Eco Insulation from Primaloft for when you need to stay warm for long hours in cold conditions. The Helly Tech Professional membrane allows the jacket to stay waterproof & breathable, with articulated sleeves, detachable hood and adjustments on the cuffs to create the perfect fit. LIFALOFT insulation by PrimaLoft. Primaloft Black Eco Insulation. Waterproof, windproof and breathable. Fully taped construction. Detachable hood. Front storm flap. Hand pockets with YKK zipper and brushed lining. Inside stash pockets. Wrist Gaitors. Adjustable hem with elastic drawcord. Main fabric: 100% Polyester; Lining: 100% Polyamide.