Rolling Dub Trio Sizing Information
Rolling Dub Trio are a Japanese boot brand that use US Sizes. However, they are built on heritage lasts so they're sizing is one size bigger than what you might expect. This is also true of other heritage boot brands.
You should purchase the same size Rolling Dub Trio boots that you would wear in White's Boots, Red Wing Boots, Wesco Boots etc.
You should purchase ONE SIZE DOWN from your typical US Sneaker size.
This size also happens to be your UK Size.
Example : If you wear a US Size 10 in Nike, Vans etc you should purchase a US Size 9 in Rolling Dub Trio. If you are a UK9 in Dr Marten's or Converse (which uses UK sizing) you should buy the same size.