The 100% white silk scarf features thermochromic, photochromic and photoluminescent inks that react to body and environmental temps, UV rays from the sun and the presence of light. A black pattern using thermochromic ink reacts to body temperature and disappears as the body warms up, helping the wearer become less conspicuous. A light green pattern with photoluminescent inks reacts to light and then glows greenish blue at night, perfect for parties and out on the street. Finally a white print using photochromic ink reacts to UV light from the sun and glows bright orange outdoors to reflect happier moods outdoors.