The ancient culture of Yemen has a lot to present to tradition lovers all around the world and people who are fond of vintage national clothing. This country has some magnificent pieces of outfits; some of them are still in use while others are almost completely forgotten. The most interesting are vintage handmade garments with lots of colorful embroideries, intricate gold jewelry, pieces made by a unique Yemeni tie-dyeing technique, and traditional daggers that always complement the male costumes.
By tradition, Yemeni men wear a long robe or a striped skirt (futa) with a curved dagger (jambiyya) at the front, attached to a decorative belt. Jambiyyas are unsheathed and brandished above the head when dancing.
Source: http://nationalclothing.org/41-nationalclothing/middle-east/yemen/58-yemeni-traditional-dress-yemen-is-a-country-with-a-remarkably-diverse-fashion.html, https://www.theguardian.com/world/2011/apr/05/yemen-20-things-to-know