Under armour evo coldgear compression mock baselayer top long sleeve navythe mens coldgear long sleeve compression mock isnt your old school mock turtleneck but you knew that we dont build stuff that just looks good its gotta work harder and better our mock does with smooth sleek dual layer construction use it to layer up or wear it on its own either way youll be ready for the weathers worst with a soft brushed inner layer that circulates heat and an element battling outer