4.2 oz./yd² (US) 7 oz./L yd (CA), 100% Airlume combed and ring-spun cotton, 32 singlesAthletic Heather is 90/10 Airlume combed and ring-spun cotton/polyesterAdditional Heather is 52/48 Airlume combed and ring-spun cotton/polyesterPre-shrunkSide seamTear away labelBELLA+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.