These two brands are about 7% tax rebate, so it is recommended to buy them in Galeries Lafayette or Paris in spring, where there are many kinds. At which airport do you leave the country? Just return it at the airport with the tax refund form when you leave the country. Every airport will have a place for tax refund. Also, we must ask them for a tax refund form. We can't get a tax refund without a tax refund form.