These are men's black track pants (or sweatpants / joggers) with white side stripes. They feature a loose, wide-leg, or baggy fit and have a drawstring closure at the waist. This style is a popular item in athleisure and streetwear fashion, often referred to as "baggy track pants," "wide-leg joggers," or "Y2k track trousers". They are designed for both comfort and style, suitable for casual outings, light exercise, or lounging.