CLASSIC COMFORT FROM TOP TO BOTTOM. The Nike Sportswear Tracksuit combines lightweight durability with a breathable mesh lining for all-day comfort and total coverage. Blocks of colour add contrast for bold, street-ready style. Breathable comfort: taffeta fabric is lightweight and durable. A knit mesh lining provides breathable comfort. Colour-block design: colour blocking on the jacket adds visual contrast and bold style. Secure style: elastic cuffs and hem help keep the jacket in place. Drawcords at the elastic waistband and hood offer an adjustable fit.