Echoing LLBean (Bean Boots are often imitated by other brands, but the genuine articles are worth every penny), Patagonia, and Carhartt. Also check out Prana for lightweight gear that can really breathe; their products got me through quite a few hot and humid summers working at a zoo in Alabama, so hopefully they will work for Taiwan. Lastly, a lesser known brand for staples like socks/ underwear is Girlfriend Collective which has a growing men’s line. Good luck!