4 2 oz /yd²  (US) 7 oz /L yd (CA) 100%  Airlume  combed and ring spun cotton 32 singles Athletic Heather is  90/10 Airlume  combed and ring spun cotton/polyester Additional Heather is 52/48 Airlume  combed and ring spun cotton/polyester Pre shrunk Side seam Tear away label p br /p p 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 wastewater 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 /p p br /p p br /p p br /p p br /p