7.5 oz., 100% cotton; Athletic Heather is 90% cotton, 10% polyester; Made with sustainably sourced USA grown cotton; Welt-knit collar and sleeve bands; Back neck tape for a comfortable finish; Three woodtone button placket with bottom box stitch reinforcement; Seamless body; Double-needle stitching on bottom hem for durability; Athletic Heather is 90% cotton, 10% polyester; Jerzees styles are manufactured using sustainable protocols which are measured and reported annually by Fruit of the Loom, Inc.; Jerzees styles are manufactured with the commitment to enriching lives for people and communities which is measured and reported annually by Fruit of the Loom, Inc.