Free shipping on just one item?

Site URL: http://www.padstowspirits.co.uk

I'm trying to set up a discount so that when someone purchases a specific product (because we can't afford to do free shipping on everything) they get free shipping just on that item. The item is a subscription.

However, you only seem to be able to apply a free shipping discount to a total cart amount which does not work here. Is there no way of applying it to a product? Seems so basic but I can't find a way around it.

thanks

Don't think you can, I tried to do this as well.

The work around from what I can think of, if your item is $100 and shipping is $10. Apply a product discount to offset the shipping cost. So $10 off the specific product but they will be charged $10 shipping. But the customer still pays $100 at the end of the day

This isn't the best solution but yeah.