Available in S, M, L and XL, so what's the problem?
It's Jake re-release, could be 2011 or 2012. Not sure.
Inner leather tag seems OK and has signs on standard wears, maybe few gently washes. Regarding odour, there is no "special" odour of DH jeans. Just hand-wash in cold water and detergent for color / black clothes.
It looks like scarf over the tee (named t-round dev I have that t-shirt in round neck and also v neck version - different name).
Round neck version:
yes, thanaz, thavar, tepphar (shioners already sold / returned), safado, excess, (slammer already sold) and some kro-shorts. I also don't know, what and how will fit you. We need to know, what did you tried in diesel, what size, what brand do you wear etc.