This casual pairing of a beige corduroy long sleeve shirt and black skinny jeans is extremely easy to put together without a second thought, helping you look seriously stylish and prepared for anything without spending a ton of time combing through your closet. Feeling venturesome today? Mix things up a bit by rocking grey athletic shoes. A killer combo like this one is just what you need come baking hot sunny days. Casual combinations for stylish 30-year-old gentlemen aren't actually that hard, as you see.