A red print crew-neck t-shirt and black jeans married together are a match made in heaven for those who appreciate off-duty ensembles. Tone down the formality of your outfit by sporting a pair of grey athletic shoes. Come boiling hot summer days you want to feel comfy and stylish –– this ensemble is just the one you need. Wondering how to perfect casual outfits as you move into your 40s? This combo is a great illustration.