Trestin is a young and friendly looking young man. He tends to have a grin on his face from the joy of life. His dark eyes can be intense and his wild hair has the look of being struck by lightning.
His skin is dark from the sun and he wears a sailing outfit.
When he travels on land he always has with him a staff with runes carved into it and a carrying case that was made to protect a book from the sea and weather. He wears a short hooded cloak with the hood up. It looks like he has something orange and furry wrapped around his neck.