4.2 oz./yd², 100% Airlume combed and ring-spun cotton, 32 singles Athletic Heather is 90/10 Airlume  combed and ring-spun cotton/polyester Alternate Heather colors are 52/48 Airlume combed and ring-spun cotton/polyester Pre-shrunk Retail fit Unisex sizing Shoulder-to-shoulder taping Side seams Tear away label Made in the USA with imported fabric 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.