Smooth, super-soft fabric delivers a fast feel & incredible next-to-skin comfort .Brushed interior circulates heat for optimal temperature regulation .Signature Moisture Transport System wicks sweat to keep you dry & light .Generous ½ zip front with stand collar for extra coverage .Updated thumbholes keep sleeves secure & help seal in body heat .Raglan sleeves & flatlock seams unlock mobility & eliminate chafing .Shaped hem with scalloped lap detail at sides .Zippered arm pocket to secure your stuff .Reflective logos deliver greater visibility on low-light runs .