Shaykh Abdul-Muhsin Al-Abbaad was asked:
What is the ruling of wearing the Qamees in Europe, that which is accustomed among them is wearing the pants and similar to it?
Wearing the Qamees is something good, this is what is befitting because the Europeans when they come to us [i.e. our land], they wear their clothing. Thus why do we see Muslims when they go there take off their clothing and wear the clothing of the disbelievers?
[Sharh Sunan Abu Dawood 10/452]
Majid Jawed Al-Afghanee