If you like practical menswear, make a black embroidered velvet blazer and a black crew-neck t-shirt your outfit choice. And if you need to instantly dial up this look with a pair of shoes, why not choose a pair of black leather derby shoes? As this look suggests, you can't think of a better choice for hot weather. Ideal if you're on the lookout for some amazingly inspiring semi-casual style for 20-year-old gents.