Regarding taxes, shipping, etc from Bespoke: For non EU residents they will deduct the VAT at the time of check out and charge a flat rate for shipping (which I don't recall offhand). They ship via Royal Mail. Once the shoes arrive in the US they are turned over to the US Post Service. When the shoes come through customs in the US you may or may not end up paying import duties depending on whether or not they are noticed by the customs agents. The shipper has no control over this and no way to predict what duty will be assigned, if any. I just received a pair with no duty due. But that's just the luck of the draw I guess.
It should be noted that in the US, whether you pay import duties or not depends highly upon the method of delivery, IME. I have had to pay import duties on every item I've ever bought that qualifies for them when DHL or UPS was used as the method of shipping. When EMS was used, I have never had to pay import duties before, and I've received dozens of qualifying shipments through EMS internationally.