>>18527180
This. Doesn't even have to be linen, but linen is one of the best options. Cotton can work, finer wale corduroy, tweed, and herringbone could work in cooler weather, though I wouldn't recommend that if you're going for a full suit (go with slacks that pair well), and definitely wear a short sleeve shirt.
>>18527175
You will 100% get called Scarface for wearing anything resembling that by the way.
In my experience though it's ghetto thugs and wannabes that say shit like that.