If you prefer casual street style outfits, why not take this pairing of a long sleeve t-shirt and navy jeans for a spin? And if you need to easily up the style ante of this ensemble with shoes, why not add a pair of dark brown casual boots to your getup? When spring is in the air, you'll appreciate how perfect this look is for awkward transition weather. When it comes to casual fashion for gents over 30, this ensemble is a good look on almost any gent.