For a look that's super straightforward but can be flaunted in a variety of different ways, try pairing a grey crew-neck t-shirt with blue jeans. For extra fashion points, complement this outfit with black leather tassel loafers. This is a modern yet age-appropriate combination for over-30 gents.
This combo of a grey crew-neck t-shirt and blue jeans is ideal for off-duty occasions. Throw black leather loafers into the mix to make the ensemble slightly more polished. As you step into your 30s, you want to start dressing like a grown-up. That's when getups like this are a tested option.