We’ve carried our brrr° technology into a long sleeve shirt that works great for layering, travel and all-around versatility when you may be experiencing fluctuating temperatures throughout the day. brrr° fabric offers what is known as the Triple Chill Effect. It has three unique cooling effects that combine to immediately and continually reduce the temperature of your skin. This is achieved through cooling minerals, active wicking, and rapid drying, plus the fabric is completely chemical-free. Complete with a button-down collar should you choose to dress it up, a chest pocket with button closure and branded buttons.