The 54 Gold Sweatshirt isn t just for keeping you warm it is designed to keep you productive and your performance high. The new thumb holes feature on the cuffs keeps your hands warm and allows your fingers to be free so movement isn t hindered. Grip Assist on the sleeves helps you get a better grip on items you have to carry or move. Combined with 3 layers of cold protection (a 310g fleece outershell, 120g polyester insulation and a 170g jersey lining) plus Grip-Assist, this sweatshirt is all you need to fight the cold and be a rock-star at work. 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.