For a relaxed ensemble, consider pairing a v-neck t-shirt with blue jeans — these items work really good together. Brown loafers will bring a hint of elegance to an otherwise utilitarian ensemble. This combination is probably exactly what you've been looking for as a 30-year-old gentleman.
Brown Loafers with V-neck T-shirt Smart Casual Hot Weather Outfits For Men In Their 30s
This combination of a v-neck t-shirt and navy vertical striped chinos is an interesting balance between comfortable and dapper. Amp up your whole outfit by sporting brown loafers. As you can see here this combination is something you can totally wear as a 30-year-old guy.
For a casually dapper outfit, consider pairing a v-neck t-shirt with brown chinos — these pieces fit perfectly well together. Get a little creative on the shoe front and elevate this ensemble by rocking a pair of brown loafers. As a 30-year-old gent, you want to start dressing more professionally. That's when combos like this are a tested option.