Combining a waistcoat with a beige suit is a wonderful idea for a stylish and polished ensemble. For something more on the relaxed side to finish your look, introduce a pair of dark purple tassel loafers to the mix. No doubt, a foolproof option if we're talking fashion for young gents.
Dark Purple Tassel Loafers with Waistcoat Warm Weather Outfits In Their 30s
Pairing a waistcoat with white chinos is a nice option for a classic and elegant outfit. If you don't know how to round off, introduce dark purple tassel loafers to the equation. As you pass the big 3-0, you want to start dressing with more sophistication. If that's the case, looks like this are ideal as inspiration.