Excellent quality control: Our socks contain high cotton content, so children will not get cold when putting on their feet, and they will not be sultry and smelly in hot weather. There are tiny non-slip particles on the bottom, which is specially designed for the safety of children. 95% Cotton, 5% Polyester Hand Wash Only Use occasions: Cute children often climb, run, and jump. Our socks can allow children to walk safely and avoid slipping during indoor activities. Generally applicable to: indoors, ballet classrooms, schools and many other occasions. Cleaning attention: our socks will not fade or shrink. You can choose to wash by hand or machine. But we still recommend using hand washing, and try not to use the washing machine too much. Because this can prolong the use time of the socks, it can also protect the anti-skid particles at the bottom of the socks.