To expound a bit on Matt's comments:
MM does 2 "black shadow tartans" in their 13 oz range and 2 in their 16 oz. They also do a grey one in their 13 oz (with very little "change" when you look at it from an angle).
Batley does (in 16 oz, I believe) 1 black, 1 navy, 1 cream, 1 white.
I don't think Strathmore does any.














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