Knickers!

[bazza950]

having found halfords padded cyclist knickers beneficial for seat comfort- at a tenner you might like to try Aldi's special offer ones -for men-at a fiver.
see https://www.aldi.co.uk/men%27s-crane-padded-cycling-shorts/p/802720476663601

[Matlock]

 , these definitely make a difference, I've used them on long trips myself. I think mine came from Halfords originally, but they're a fine mesh material, so a bit cooler than lycra. A tip from a cyclist mate of mine was not to wear normal underwear underneath