5.4 oz., 50% cotton, 50% polyester; Oxford is 47% cotton; 53% polyester; Made with sustainably sourced USA grown cotton; 1x1 rib cuffs; Two-button placket with bottom box stitch reinforcement; All JERZEES® youth products and packaging comply with the tracking label requirements of the Consumer Product Safety Improvement Act; 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.