6 oz./yd, 100% Airlume combed and ring-spun cotton, 20 singles. Athletic Heather is 90/10 Airlume combed and ring-spun cotton/polyester. Boxy fit. Semi- drop shoulder. Double-needle stitched neck. Side seams. Tear away label. BELLA+CANVAS uses sustainable manufacturing processes with Blue Sign certified dyes, efficient dye houses that adhere to the state of Californias 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.