The Mini Boxy Racer Sleeve T-Shirt is a regular fit with a boxy silhouette, crafted from organic superfine cotton jersey. Designed with contrast rib detailing at the neckline and sleeve hems, with a contrast rib insert extending from the armhole to the sleeve hem. Boxy fit Contrast rib detailing Cotton jersey Please note, this style is designed for children aged 6 months to 4 years.