Solvair now make the real Dr Martens (in the UK)! The high street brand that owns the name makes all theirs in the far East. Check out Solvair if you can find them, they are better quality.
So the "dupe" non-branded version is actually the original, and much, much better quality than the branded official version of the product.
[0]https://en.wikipedia.org/wiki/Solovair [1]https://en.wikipedia.org/wiki/Dr._Martens
Also if you want legit ones, including vintage, check out the UK Boot Company in Camden Town.