7 oz/yd2 / 240 gsm, 100% recycled polyester Coolcore® fleece; Recycled material made from plastic bottles; Coolcore® technology is chemical-free, mechanically engineered performance that doesn't wash out; Moisture wicking, thermal regulating, UV protection with no topical treatments; Reverse coil zipper with rubber pull; Lower zippered pockets ; Sustainable fabric manufacturing practices. Learn more at Coolcore.com