While I am no umbrella expert (I am still getting by with the drug store umbrellas myself), I'd check one of the following links:
To be honest, If you really want a good quality umbrella (and by that I define it as construction. strength, and durability, rather than wood handles etc)
I heavily recommend blunt Umbrellas. You can find them at many online places including bonobos, huckberry etc, and on windy days, it holds up well (whereas ppl around me deal with inverted unbrellas etc)
If you want something like London Undercover or the ones mentioned above (except those in DieWorkWear link-those are good options too), I think they're okay for rain/drizzle, but not for wind/rain/more severe conditions. They certainly look more stylish, but I'm skeptical about functionality.
When it comes to umbrellas, unfortunately utilitarian concerns tend to win over fashionable considerations