Shrug off the chill before and after training or competing on cooler days in the Nike Therma-Sphere Trousers. Soft layered knit fabric teams up with built-in breathability to keep you warm without overheating. This product is made from at least 75% recycled polyester fibres. Soft Feel::Layered knit fabric feels soft and comfortable.,Lasting Warmth::Nike Therma-FIT Technology helps manage your body’s natural heat to help keep you warm in cold-weather conditions.,Built-in Breathability::The hems unzip so you can adjust your airflow down low. The breathable inset on the upper back releases excess heat to help prevent you from overheating. Product Details::Standard fit for a relaxed, easy feelBody: 100% polyester. Panel: 90% polyester/10% elastane.Machine washImportedElastic waist with drawcordZip pockets on sides