The Insulated Quilted Sweatshirt is a zip closure style that provides triple layer warmth with 310g cotton/polyester fleece blend outershell, 6oz quilted polyester fiberfill insulation, and 110g jersey lining. It is made of shrink resistant fabric and has large front pockets and a hood to help protect you from the cold.Sizing Instructions: For the most accurate fit, take your measurements over the base layer of clothing you intend to wear with this RefrigiWear gear (such as thermal underwear, jeans or a sweatshirt) and refer to the size chart for this product.