CS, no, there were 3, the light blue temperate was the Mk2, the slate grey Mk4 was winter and the cold weather one wad also slate grey.
The jacket and trousers came as a one piece but you could separate the parts
The trousers had grey braces, the top had a tail crotch strap. It was lined with a blanket type material.
Matching gloves were gauntlets much prized by MTD. They were brown leather but different shades for left and right ad they were issued as EA and different contractors!
The blue and grey were replaced by green equivalents.