French designer Simon Porte Jacquemus and Nike have teamed up to create and curate another collection. Clean, crisp and classic, these tracksuit bottoms borrow some iconic design lines while bringing their own modern flair. They're fully equipped with water-repellent and wind-resistant crinkled nylon fabric to help you stay dry. The cool mesh lining offers breathability. Its designed to feel relaxed through the seat and thighs to provide an easy-going, casual fit.