4.2 oz., 52% airlume combed and ringspun cotton, 48% polyester, 32 singles; Prism Colors: 99% airlume combed and ring-spun cotton, 1% polyester; Athletic Heather and Black Heather are 90% airlume combed and ring-spun cotton, 10% polyester; Retail fit; Unisex sizing; Shoulder taping; Sideseamed; Tear away label; Pre-shrunk; BELLA+CANVAS uses sustainable manufacturing processes with Blue Sign certified dyes, efficient dye houses that adhere to the state of California�s EPA regulations around waste water treatment and usage, and cutting facilities in Los Angeles that run on partial solar power with comprehensive recycling programs for paper waste and fabric scraps.