This combo of a grey v-neck t-shirt and skinny jeans is the ultimate off-duty style for today's gent. To give your overall look a smarter touch, complement your look with brown leather low top sneakers. As you can see, as a 30-something Millennial guy, you have a vast array of outfit options.
This combo of a grey v-neck t-shirt and skinny jeans is well-executed and yet it looks functional enough and apt for anything. A pair of charcoal leather derby shoes immediately bumps up the wow factor of this outfit. All in all, a perfect example of casual fashion for maturing gents.