Charlie,
What you have here is the reversible diamond pattern quilted parka. Basically a German copy of the Russian telogreika winter jacket, it is a gray-green color that tended to look more grey than green, with white on the reverse;
The pants are reversible over-pants, here in the mouse grey/white, square quilted pattern, the same as the other parkas in the figure's box art. The white side out tended to look rather khaki, especially after considerable wear and washings.
You are going to have to mix your own colors on this, but don't freak out too much on the exact color, they had a considerable amount of variation, from olive-green, mouse-gray and blue-grey and in different patterns.
Dragon makes their 1/6 scale action figures in this too;
http://www.valhallahobbies.com/xcart/product.php?productid=16364&cat=0&page=1