A long-sleeved shirt is quite appropriate in the summer. In order to look stylish and attractive in such a shirt, you need to properly tuck the sleeves. There are techniques for doing this with a perfectly adjusted level of negligence. Correctly rolled up shirt sleeves will look elegant, without causing associations with the rolled-up sleeves of a laborer. Perhaps a shirt with a short sleeve is somewhat more comfortable, but it clearly loses to a shirt with rolled sleeves.
It is necessary
Roll up the sleeves to just below the elbow.
Pull up a little to create dramatic folds.
If you are dressing in a casual style, you can wear a jumper, sweater or blazer over your shirt. And after that, tuck the shirt sleeves so that they are on top. In a classic style of clothing, this option is unacceptable.
Classically, you can simply fold the sleeves up to the desired length with equal pleats. But again, different lengths will create a completely different effect. That is why the method with a turn up to the elbow and raising the sleeve is the most popular, because it makes the owner of such a shirt stylish, confident and attractive, of course.