These tights are made of a cotton blend and are moisture-wicking and heat-generating. I bought them as spares, but my child outgrew them before they were used. They are a slightly brownish gray color. I am looking forward to your purchase if you understand that these items have been stored at home. #BelleMaison #Senshukai #Hotcott #Kids #140cm #Tights #Gray #MoistureWickingHeatGenerating #Cotton #WarmInnerwear