Dress
The traditional dress in Colombia is called ruanas, but today this is rarely worn by the Colombians. This consists primarily of a large cloth that covers a person's entire body and was almost always brown, although over time colors were added and changed. Women also often wore panolones, which are shawls and polleras, which are skirts. Men also traditionally wore hats called sumbrero vueltiao.
Today these traditional clothes have essentially disappeared in favor of more modern western-styled clothing. Most people in Colombia today dress no differently than that of Europe or North America, with a few exceptions. Both men and women tend to dress rather nicely when in a business setting or when going out for dinner, drinks, or dancing. Additionally, men rarely wear shorts and still wear the sumbrero vueltiao.
As a visitor to Colombia try to dress somewhat conservatively as revealing too much skin can be viewed as a bad thing, although tight fitting dresses on women don't seem to cause any offense. Generally, the Colombians are fairly stylish and bringing your best is a good thing, but wearing expensive watches or jewelry should be avoided.