going through all my kit here and remembered I had a pair of Schwalbe Marathon Plus's that I will never use. I bought two pairs, one on bike now, and a pair for spare. However, that was about six months ago and I don't think I have enough years left in me to wear out the ones on my bike - they last for ages and it's true to say that the puncture protection is unbelievable - never had a puncture. Anyway, I have a pair for sale in 700x28 good hybrid size. They vary greatly in price but these can be had for £40 the pair.
I don't want to send due to the complications of trying to send tyres but OK for collection from Weston S Mare or Bristol. I work near Bristol Temple Meads so willing to meet up.
Hope they can help someone out.