Experience the KÜHL difference with the INVIGORATR™ MERINO 1/4 ZIP. We chose a superfine Merino so it’s softer on your skin. Innovative AERO™ KNIT construction traps micro air pockets so it keeps you warmer without adding weight creating the ultimate in cold weather temperature regulation. The articulated design comes from our obsession with the study of movement. DYNAMIK™ stitching and micro flat seam construction make it the perfect layer for cold weather activities.Features Constructed of our exclusive AERO™ KNIT fabric - a softer, lighter, warmer Merino wool AERO™ KNIT provides the temperature-regulating abilities, durability, and odor resistance of Merino with a touch of nylon added for strength Articulated design for superior mobility and fit DYNAMIK™ stitching for increased stretch and strength Ideal for layering Imported Specs Fabrics: Aero Knit Responsibly Sourced Superfine Merino Wool,  Nylon Added For Durability  Merino Wool’s natural odor resistance allows you to wear more and wash less.