This top can be worn alone if you follow an intense outdoor fitness regime and tend to overheat, but its lightweight means it can also be worn as part of an effective layering system. Lined with soft brushed fabric on the inner, it isn't at all harsh next to the skin and feels similar to cashmere, making it the star of the show for running or cycling in more brisk winter temperatures.Short sleeves & crew neck - well-ventilatedThermal construction LightweightPolyester fabric body - brushed reverse for lasting next-to-skin comfortFabric: 65% Polyester, 35% vVscoseColour: Black