Fabric: 4.2 oz., 32 singles, a blend of 52% Airlume combed and ringspun cotton and 48% polyester Athletic Heather, and 90% Airlume cotton/10% polyester Black Heather. Features: Stylish retail fit, side-seam construction, and tear-away label. environmentally-friendly manufacturing processes, including blue sign certified dyes, efficient California dye houses, & partial solar-powered cutting facilities in LA that recycle paper & fabric scraps.