These men's summer jeans are perfect for casual wear. Just put them on like you would any regular pair of pants. When choosing a size, remember that Asian sizes are smaller, so pick a larger size if you're in between. Check the size chart first, and if you're not sure, reach out to our customer service. Regarding color, don't be surprised if it's a bit different from the pictures because of computer screens. For maintenance, machine - wash them in cold water with like colors. Hang them to dry to keep their shape. They're made of cotton denim, so they're pretty durable, but gentle care will make them last even longer.