To wear these cargo trousers, simply zip up the fly and adjust the waist to your comfort. They're great for everyday use, whether you're at the office or running errands. When it comes to washing, follow the care instructions on the label. Usually, polyester fabric can be machine - washed on a gentle cycle. Avoid using harsh detergents as they might damage the fabric. After washing, let them air - dry to keep their shape. Before buying, always double - check the size chart because different suppliers have different sizing. This way, you'll get a perfect fit.