What sets this stylish tee apart is its thick and durable fabric. Engineered to withstand the boundless energy of kids, the shirt promises longevity and resilience, making it the go-to choice for parents and schools alike. 100% cotton. Sport Grey is 90% cotton, 10% polyester. Fabric weight: 5. 3 oz. /yd. ² (180 g/m²). Pre-shrunk fabric. Classic fit. Taped neck and shoulders. Tear-away tag. Made with OEKO-TEX certified low-impact dyes.