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. Jerzees 437Y Youth SpotShield Jersey Polo