The HiVis Insulated Softshell Jacket provides seriously comfortable warmth with 6 oz. synthetic down insulation and a super-soft sateen reflective lining in sleeves and torso to retain body heat. The outershell is durable, windproof, stretchy and water-repellent, with High Visibility color and reflective tape for enhanced visibility in low-light or limited-sight environments, heat-bonded without stitching to prevent tearing and cracking. The tunnel collar of the HiVis softshell jacket prevents zipper chafing, and soft hook-and-loop wrist tabs and drawcord hem seal out the cold. With over 400g of insulating power, the HiVis Insulated Softshell Jacket will keep you warm down to -20°F.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.