Things have become very complicated with shipping to the USA, with tariffs being introduced on the 29th August. Couriers are busy trying to work out how to deal with it and we hope it will all come together quickly. In the meantime we have disabled the option to ship to USA so that no-one gets caught in an in-between situation where they may be liable for tariffs but the system hasn't yet figured out the right way to implement them. We hope to be able to switch you back on very soon after the 29th August.
We think that when the dust settles, there will be a 10% tariff added to all US sales, which would be added at checkout.