5.4 oz., 50% cotton, 50% polyester; Oxford is 47% cotton; 53% polyester; Made with sustainably sourced USA grown cotton; Two-button placket with bottom box stitched reinforcement ; SpotShield™ stain-resistant treatment; welt-knit collar; Back neck tape for a clean, comfortable finish; Tagless label ; 1x1 rib knit sleeve bands; pearlized buttons with durable cross-stitching ; Double-needle stitched bottom hem; seamless body; CPSIA Compliant; 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.