Gore Bike Wear Men's Air Thermo Tights, Black/Neon Yellow, Small 80% POLYESTER, 20% ELASTANE Imported Protection and warmth on dry, cold days: These insulating running tights keep your muscles warm during seasonal transitions and winter. Tight fit Zip pocket on back Contrast flat-lock seams Zipper with semi-lock slider and reflective piping on lateral hem Adjustable elastic waistband with flat cord Reflective print on back