What clothes do most people in mexico city wear?

Mexican people usually wear the same clothes Americans do, specially among big cities like Mexico City, Guadalajara or Monterrey. These include shirts, blouses and t-shirts, khakis or jeans, skirts and tennis shoes or formal footwear. In business environments, suit and tie are also common, but in cities with warmer climates like Monterrey (24-28 °C / 75-83 °F), those suits are made of light cotton or jute (see related links), which are much fresher than standard cotton or wool suits. Rural people wear cotton shirts and pants; sometimes they use Texan hats but caps are much more common. No sombreros or ponchos at all.