4.75 oz., 60% cotton, 40% polyester; Oxford: 47% cotton, 53% polyester; Pre-shrunk Jersey, 30 singles ; Dri-Power® moisture-wicking technology; Odor-fighting properties, UPF 30+ protection; Oxford back neck tape on all colors; Made with sustainably sourced USA grown cotton ; Premium softness for all day wear; Tagless label; Eagle R flagtag at left hem