Our Arctic Extreme Mens Down Jacket is made of 100% nylon fabric with 90% down and 10% feather padded insulation that will keep you warm in temperatures as low as -60 degrees celsius. It has a water-resistant and breathable outer, making it ideal for winter weather conditions. With practical zipped front pockets to carry the essentials and an adjustable hood for extra protection, this jacket would be perfect for any outdoor occasion. Water-resistant - Treated with durable water repellent (DWR), droplets will bead and roll off the fabric. Ideal for Light rain, or limited exposure to rainFill Power Rating 700 - Higher fill power = warmer item. The measure of the loft (fluffiness). The higher the rating, the more air trapped per ounce of down allowing a higher level of insulation