Black? Navy blue sleeveless dress with white polka dots, size 110. - Color: Black? Navy blue with white polka dots - Size: 110 - Design: Sleeveless Thank you for viewing. Purchased at a Nitori store and worn a few times. I think it's N-Cool, but I'm not sure if the function is still the same as when I bought it. It's a thin, cool-to-the-touch material. This is a used item, so please understand that there may be oversights.