Technically, you can wear whatever you want in Istanbul - there are no official rules. As parts of the city tend to be slightly more conservative than others, many women often feel more comfortable covering their legs (at least past the knees), chest/cleavage, and stomach. At the same time, men are better received when clothed, be it at least with a t-shirt and shorts.
When visiting a mosque, it's important to remember that both men and women should remove their shoes upon entering. You can either carry them in a plastic bag or leave them on the shoe rack. Additionally, it's necessary to dress appropriately by covering your knees, shoulders, and upper arms. Women are also expected to cover their hair.
It’s usually wisest to respect the cultural norms of a destination so that you can be welcomed with open arms at all times.
As we mentioned the weather before, just make sure to pack clothing that will allow you to enjoy all activities even if we don’t have consistent blue skies and sunshine.
Closer to the travel date, we will also inform you of any other particular President’s Club event dress codes.