The Dothraki, ASoIaF

The Dothraki are a culture of nomadic warriors who roam the grasslands in hordes (Khalasars).
They have copper skin, black hair arranged in long oiled braids and almond shaped eyes. Small bells adorn their braids and a new one is added for each victory.
They wear painted leather vests over bare chest and horsehair leggings (as well as sandsilk pants) with bronze medallion belts. Their weapons inculde Arakhs (long curved blades), bows and whips and they ride on flat saddles with short stirrups. The Dothraki worship a horse god as well as the Moon and Sun deities.