Our Body Sensor technology is designed to keep you warm when it's cold, and cool when it's warm. These black opaque tights are a style must-have.,Style: Comfort waistband, Reinforced toe, Body Sensor regulates temperature for ultimate comfort,3D stretch for a perfect fit,Added stretch,Care and composition: Composition: 92% polyamide, 7% elastane lycra and 1% cotton, Care instructions: Machine washable