Keep going even when the temperature drops with this warm running shirt from Röhnisch! Light Thermo Half Zip is made from a mix of recycled polyester and thermal jersey with a cozy brushed interior that keeps you warm during your run. The high collar provides extra protection from the cold, while the half-zip allows for ventilation when needed. Thumbholes at the cuffs keep sleeves in place and a handy sewn-on pocket on the side provides space for essentials.