This easy-wearing, hard-working 12.5-ounce, FR Polartec Wind Pro fleece, 67% mod acrylic/29% rayon/4% spandex jacket has a high warmth-to-weight ratio. It is wind-resistant and very breathable with a YKK zipper, two lower-front welt pockets, and meets the performance requirements of NFPA 70 E standards. 12.5-ounce, FR Polartec Wind Pro fleece High warmth-to-weight ratio YKK zipper