I have a RLBL white linen blazer which I have listed for sale here http://www.styleforum.net/t/296769/rlbl-anthony-sport-coats-linen-cotton-wool-40r-42r-42l-44r
I'm in two minds about keeping it as it fits me perfectly and is generally an amazing jacket, but living in London I have no use for a white jacket of any sort.
Am I mad to think I could dye this navy? If so, any tips for how I should go about this is much appreciated
Yes. Don't do it.