If you are out of logging on the shop, all the prices are displayed with the French VAT (20%). If you are logged, the prices depend on your shipping address as you can check below :
For orders placed out of Europe (French overseas departments and territories included), you pay exclusive of tax . Indeed you are not subjected to the French VAT. On the contrary, you are subjected to the VAT and the customs taxes according to your country. These ones will be added by the customs of your country on the arrival of your order (at the airport, at the station, at the harbour...). Generally, the amount of the taxes is linked to several criteria : the selling value, the weight of the package, the dimension / volume of the package...
Please contact the customs of your country to have further information about these taxes.