Attire
Head covering. In most synagogues, it is considered a sign of respect for male attendees to wear a head covering, either a dress hat or a kippa (skull cap, plural kipot also know by the yiddish term yarmulke a corruption of the Hebrew yirat hamalkut/fear of the kingship). It is common practice for both Jews and non-Jews who attend a synagogue to wear a head covering.[15][16] Some Conservative synagogues may also encourage (but rarely require) women to cover their heads. Many Reform and Progressive temples do not require people to cover their heads, although individual worshippers, both men and women, may choose to. Many Orthodox and some conservative men wear a head covering throughout their day, even when not attending religious services.
Tallit (prayer shawl) is traditionally worn during all morning services, during Aliyah to the Torah, as well as the Kol Nidre service of Yom Kippur. In Orthodox synagogues they are expected to be worn only by men who are halakhically Jewish and in Conservative synagogues they should be worn only by men and women who are halakhically Jewish.
Tzeniut (modesty) applies to men and women. When attending Orthodox synagogues, women will likely be expected to wear long sleeves (past the elbows), long skirts (past the knees), a high neckline (to the collar bone), and if married, to cover their hair with a wig, scarf, hat or a combination of the above. For men, short pants or sleeveless shirts are generally regarded as inappropriate. In some Conservative and Reform synagogues the dress code may be more lax, but still respectful.