100% hosiery cotton, 180 gsm interlock fabric. These richly designed kid's half sleeve t-shirts are a perfect buy for parents looking for safe and skin-friendly garments for their toddlers. The dyes used are free of toxic chemicals and the fabric is bio-washed, making it just the right choice for infant wear. This solid t-shirt for girls' & boys' half sleeves and regular fit daily usage will provide him with abundant comfort and ease. While the half sleeve and a round neck make it all the more fashionable.