These certainly ain't natural, but I guess that's not what you'd expect from Pringles.
What you have is a pretty excellent taste explosion, consisting of sweet tomato, tangy onion and a light chili kick. They're definitely not here to burn you at all, personally I wouldn't label them very spicy at all but I do like very spicy crisps.
It says limited time only on the pack, but I see a lot of good reason to keep them in the range, and even introduce them over here.
8/10