The first pair of track pants were produced in France in 1920. Grey, jersey trousers that were designed to enhance movement and comfort during exercise, the aim here was functionality, not design. Now; almost a century later, the track pant is a go-to style amongst athletes and artists alike, with many iterations and ways to wear. Whether casual, cosy, fitted or formal, the possibilities are seemingly endless. We take a look at some of these styles and offer up some selected wares to help you narrow down your choices.