I recently got the 2LT model, and with the hot and humid Florida weather, the leatherette was very sticky and sweaty. I finally caved in and bought the Coverking mesh seat covers. Here's a picture in case anyone's also considering that:
So far I've only tried it out for a day but it seems to breathe a lot better.
And to answer some questions that you might have:
1. I got the 2LT instead of the 1LT because it had significantly less miles than any of the 1LTs on Carvana
2. Coverking doesn't actually have the 2015 Spark EV in its database, but I ordered for the 2015 Spark and it still fits correctly
3. It has flaps for the airbags in the seats so that they're not covered
So far I've only tried it out for a day but it seems to breathe a lot better.
And to answer some questions that you might have:
1. I got the 2LT instead of the 1LT because it had significantly less miles than any of the 1LTs on Carvana
2. Coverking doesn't actually have the 2015 Spark EV in its database, but I ordered for the 2015 Spark and it still fits correctly
3. It has flaps for the airbags in the seats so that they're not covered