100% polyester. Contrast Material: 86% polyester, 14% elastaneA technical training pants slim fit with waterproof and windproof softshell thighs. Inside the pant is elastic fleece fabric that keeps. Reflecting pressure in neat designs on the side panels increases visibility in dark conditions. Strategically placed mesh panels provide maximum ventilation and moisture transfer. Elastic seams increases your mobility and comfort. In the waist is an elastic band with silicone grip to the pant is securely even during intense training.