Free shipping for one product

-- HikaShop version -- : 2.6.0
-- Joomla version -- : 3.4.5

Hi,

I've read various questions and answers for this topic, but i didn't figure out how to do it.
I'd like to setup a free shipping method if the user put in the cart a certain product. So, if in my cart there's this certain product, shipping costs are zero.

How can i do it?
Thank you

Hello,
The solution can be to set a weight equals to 100000 kg on your special product for example, and then :
- Create a special shipping method
- Set the price to 0
- Set the "Minimum weight" option to 100000 kg

Thank you for the answer!