A white v-neck t-shirt and navy chinos are a smart pairing to add to your current lineup. All you need is a pair of low top sneakers. As you can see here, this ensemble is a really wonderful pick, especially for in-between weather, when the temps are dropping. Perfect to show people that even as a 20-something guy you're confident enough to own your sartorial choices.
For a casual and cool look, consider teaming a white v-neck t-shirt with black chinos — these pieces play perfectly together. A pair of low top sneakers will pull this full outfit together. When temps are dropping and autumn is settling in, you'll love this combo as your go-to for transitional weather. Ideal for a younger guy if you want to project an easy-going spirit.