Visicell: highly reflective materials are designed to enhance other’s awareness of you in Dim light situations, and keep your body visible while you train or play pwrwarm: strategically placed adaptive materials that help you maintain an optimum body temperature (ceramic print which retains heat next to the body) strategically placed, highly reflective panels on the sleeves allow for 360 degrees of visibility and improved safety while in low light conditions mesh inserts for improved air circulation at critical heat zones and comfort articulated sleeves for improved flexibility and freedom of movement anatomically shaped collar to avoid friction at the hair line highly reflective zipper puller, reflective logo and other reflective items for enhanced visibility in low light conditions slightly brushed material on the inside provides for extra warmth  deep 1/2 zip for easy putting on and taking off of the garment.