Yes, 6 pack of crisps only 20p!!!!
I went into my local store saw it for 20p, however the Cheese & Onion and Ready Salted flavours were 75p. But no special offer because the label was normal colour. ( Normally, if something is on offer the label is yellow)
Online has a higher price of 75p. So offline only, can't say if it's nation wide.
Haven't tried them yet so not sure how good they are but at that price I can't complain !!
( Sorry i've got the picture of the Cheese & Onion flavour, couldn't find the picture for the Salt& Vinegar ones)