Side seams. Tear-away label. Contrast raglan sleeves and collar. 3.6 oz., 52/48 airlume combed and ringspun cotton/polyester, 40 singles. Black Heather is 4.2 oz., 90/10 airlume combed and cotton ringspun cotton/polyester. Triblends are 3.8 oz., 50/25/25 polyester/airlume combed and ringspun cotton/rayon, 40 singles.