Threadrock Little Boys' This Boy Is Getting Promoted To Big Brother T-Shirt Threadrock exclusive, infant or toddler boys' tee Infant sizes run small; consider ordering a size up *OFFICIAL SIZING* (width x length measured in inches): 6M - 9.75" x 12.5" | 12M - 10.25" x 13" | 18M - 10.75" x 13.5" | 24M - 11" x 14" | 2T - 12" x 15" | 3T - 13" x 16" | 4T - 14" x 17" Size specs approximate due to manufacturing variations 100% preshrunk cotton; ribbed crew neck; taped shoulder-to-shoulder; double-needle hemmed bottom and sleeves