The tank top is made of 100% cotton, the main component is cotton,soft and breathable,suitable for outdoor and indoor occasions in summer We provide a wide range of age sizes,you can buy according to your child's age.The kids tank top is unisex, which is suitable for boys and girls 6 pieces of kids tank tops inside each package,they can be hand wash and machine wash, sufficient for the daily change, easy to wear and easy to match The tank top can be worn outdoors for running, playing, and can also be worn at home,comfortable and convenient to wear The sleeveless pure color tank top is easy to match with different clothing,they can be worn with sports pants, jeans, sportswear and other high waisted clothes 6-Pack Cotton Undershirt Tank Top