The PolarForce Sweatshirt isn t just for keeping you warm it is designed to keep you productive and your performance high. The new Performance-Flex feature on the elbows keeps this warm and comfortable sweatshirt flexible 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 180g jersey lining) plus Performance-Flex and Grip Assist, this sweatshirt is all you need to fight the cold and be a rock-star at work. Also available High-Visibility Lime - There are many reasons your job-site might make being seen tough. With the HiVis PolarForce Sweatshirt, you know you'll be seen in dangerous conditions.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.