Keep warm on cold-weather days outdoors with the Columbia Dotswarm Half-Zip Pullover. Ultra-cozy 100% polyester Dotswarm MTR fleece fabric is bolstered with Columbia's exclusive Omni-Heat thermal reflective technology, which reflects and retains body heat for temperature regulation and even greater warmth. The half-length front zipper extends through the top of the high mock-neck collar for added protection against chilly air. Modern Classic fit. Imported.