Wearing the clothing of the land

Hi,

In a land where Jews and non-Jews were the same garb, this type of clothing cannot be considered "non-Jewish garb", such that a Jew should avoid it under the laws of chukot akum.

Of course, one must make sure to wear modest clothing, but that is an entirely different matter.

(Rav Moshe Feinstein, Igrot Moshe Yoreh Deah 1:81)

Have a great day,
Mordechai