Opt for dry cleaning to preserve form and quality; for hand washing, use cold water and mild detergent. Handle with care, avoid rubbing or wringing. After washing, gently press out excess water, air-dry jacket and trousers on hangers away from sunlight. Iron on low with a pressing cloth, avoid steam. Store in a cool, dry place, use garment bags, and hang jacket on padded hanger. For wrinkles, consider a fabric steamer or a steamy bathroom.