Warm Power fabric breathes dries quickly and wicks moisture efficiently to provide insulation without being uncomfortable or clammy. Use the Mavic Knee Warmers when the weather is not cold enough for leg warmers but you are still looking for a little warmth on your legs. The Mavic Ergo Grip silicone grippers keep the knee warmers from sliding down and bunching up. Brushed lining slides on smooth and doesn't chafe your road-weary skin. The elastic cuff and silicone grip secure the sleeve while you pedal like a beast. Reflective details enhance your visibility to drivers during early morning or evening rides. Black.