●High Elastic Ultra Soft and Comfortable ●Great as cold weather base layer underwear for winter indoor/outdoor activities ●Round neckline (Deep round neckline on the front and normal on the back), perfect subcoating for sweater and coat ●Base-layer-underwear closure,long sleeve top, elastic waist with convenient fly front ●2 Pieces Thermal Set (Top & Bottom).The four way stretch material provides a comfortable active base layer fit