Firbolgs resembled humans and the males had great, thick beards. Their thick, tough skin was fleshy pink, and their hair, though it came in many colors, was usually red or blond and worn long. A firbolg's voice was deep and soft, and they had a tendency to roll their consonants when they spoke. Firbolg tribes monsoon in remote forest strongholds, preferring to spend their days in quiet harmony with the forest. When provoked, Firbolgs demonstrate formidable skills with weapons and druidic magic.
As humanoids related to the fey, firbolg are long-lived. A firbolg reaches maturity around 30, and the oldest can live to be 500 years old.