The Complete Guide To Men's Dress Codes
Avoid the awkwardness with our breakdown to what's appropriate, when (Continued)
Business-casual will forever be twinned with smart-casual (more later). In short, you don’t need to wear a suit.
A separate jacket or blazer is advisable though, with a button-up shirt (button-down collars are ideal), shoes that are less formal than Oxfords but smarter than trainers (e.g. brogues or loafers), and maybe a tie. If in doubt, wear one: you can always take it off and stick it in your pocket.
You can probably incorporate some patterns and lighter colours here, too; you can even get away with plain, dark jeans. Chinos/khakis also work.
...more to come