Sensations crisps are made with real ingredients and no artificial colours, sweeteners, flavour enhancers or MSG so go ahead and indulge yourself.
Now, I wonder what sort of other ingredients Walker's use in their non-'Sensations' crisps. Could they possibly be using non-real ingredients?
Incidentally, the Vintage Cheddar & Onion Chutney packet pictured above isn't free of E numbers, as "real ingredients" would like to suggest. If I'm reading that link correctly, it contains: E330, E160c, and E322.