Wear the track jacket with denim or tailored wool trousers for contrast, or as a full set with the matching track pants for a strong, directional look. Keep the base layer simple — a white or black tee, or a minimal knit — to let the color blocking and stripes stand out. Footwear can skew either sport or dress: leather sneakers, loafers, or even a slim boot all work. Use accessories sparingly so the fabric and cut stay in focus.