This black Helly Hansen H1 Pro Lifa seamless sweater is designed with LIFA thermal mapping technology panels and lining to regulate your body temperature for the right amount of warmth. It features a seamless fit with a soft and insulating merino wool exterior, stand collar, half-zip neck fastening, logo print at the chest, long sleeves with thumb holes, elongated hem and laser cut holes at the hottest parts of your torso. You might not be feeling too hot but you’ll be looking hot in this Helly Hansen performance base layer.