When the world sleeps, night runners seek. The Runner ID Thermo-R+ Tight awakens your inner adrenaline chaser and lets it run free—with strategicallyplaced 3M reflectivity that makes the human form instantly visible in low-light conditions. Highperformance dryCELL technology keeps away moisture, while Thermo-R+ technology regulates body temperature. Take on the night without thinking twice.Are you what they call a technical runner? If so, these are the tights you need. Trusted and loved by runners who want practicality and style, this tight combines two of PUMA's most innovative technologies: Runner ID and THERMO R+, the latter of which controls heat in order to keep your body at the optimal temperature.