From publisher blurb:
Warriors of the Wild is a fantasy d20 product line designed for both players and game masters. It offers well-balanced and thoroughly play-tested classes constructed around various animal, natural, and tribal themes. These classes are perfect for any combat-heavy game, be it in dungeons, cities, the wilderness, or other planes.
This product features the wildcat, a prestige class ideal for fighters and barbarians, but also suitable for other martial characters. Wildcats are all about speed. They strike with alarming quickness and can surprise even the best-prepared foes. Like felines, these agile warriors never waste an opportunity to kill.