This one is 'Long Hair Evolution'. (Base Brunette color).

If you look in Poser freestuff you will usually find LOTS of free color mats (Blonde, Red, etc.) Some of the really good free color mats for Koz hair is made by Wenke. There are HUGE amounts of them for nearly all Koz hair styles on Wenke's website.

Search under HAIR, KOZ, Wenke, etc...