Some Muslims have a mistaken understanding of the Prophet’s (S) dress, especially with the built in Arabization of many muslim communities.  We tend to forget how far modern Saudi dress actually was from the Prophet’s (S) clothing.

His dress generally consisted of a shirt, tamad (trousers), a sheet thrown round the shoulders and a turban. On rare occasions, he would put on costly robes presented to him by foreign emissaries in the later part of his life. [Ahmed, Musnad, Hafiz Bin Qayyim]

(ref: “The Message of Mohammad,” by Athar Husain)

Narrated Abu Huraira: A man stood up and asked the Prophet about praying in a single garment. The Prophet said, “Has every one of you two garments?” A man put a similar question to ‘Umar on which he replied, “When Allah makes you wealthier then you should clothe yourself properly during prayers. Otherwise one can pray with an Izar and a Rida’ (a sheet covering the upper part of the body.) Izar and a shirt, Izar and a Qaba’, trousers and a Rida, trousers and a shirt or trousers and a Qaba’, Tubban and a Qaba’ or Tubban and a shirt.” (The narrator added, “I think that he also said a Tubban and a Rida. “)

ref: Sahih Bukhari

“This, my son, is not the dress of one who desires martyrdom. Take it off. That will make your movements lighter and quicker. Wear instead the sirwal (shalwar) so that if you are killed your awrah will not be exposed.”

-Asmaa bint Abu Bakr (R) (Daughter of Abu Bakr as-Siddiq (R), speaking to son Abdullah (R))

ref: “Companions of The Prophet”, Vol.1, By: Abdul Wahid Hamid.