Style-wise, there is no reason why you should ever put long sleeves under short. Doing so opens up opportunities for mismatching between the color of the protruding sleeves and the rest of your outfit. There is simply no color combination that looks good. If you choose long sleeves that are the same color as the T-shirt over it, you will look like you think the boundary between the sleeves is invisible, which it clearly is not. Neither you nor your T-shirt has invisibility powers. Even if you manage to select a color combination that usually works, you will still look like a seven-year-old kid whose mom has dressed him. If the long sleeves under your T-shirt are from a thermal underwear top, that is even worse. There are better looking ways to keep warm - skip the thermals and wear a sweater instead.
2. 90s style spiked hair
I’m not talking about the short, small, messy spikes favoured by young men. Some subtle spiking at the front of your hair suits plenty of men and if that’s your look, keep wearing it. Just don’t make the mistake of covering the entire top of your head in liberty spikes, or you’ll look like a cartoon dinosaur.
3. Socks with sandals or flip flops
Even if you don’t understand why pairing sandals or flip flops with woolly socks is aesthetically unappealing, you can appreciate the connotations. Wearing socks and sandals marks you as either a daggy dad, or a tourist who didn’t pack appropriately, or worse: both. Every now and then, magazines and fashion gurus will try to tell you that socks with sandals is the hottest thing on the catwalk right now. Resist their assurances-you’ll look stupid trying to carry it off on the street.