Customs fees are taxes that can sometimes be applied to imported shipments, based on each country's import regulations.
Please note that Printify is not responsible for any customs fees that an order may incur upon its arrival in the destination country.
To avoid that as much as possible, we recommend choosing a print provider that is in the same area as the majority of your customers. For example, choose a US-based print provider if most of your customers will be located in the US.
The locations of our print providers are available here.
If you'd like to find out more about using multiple print providers for a single listing, please visit this article.