I have got the Equi Comfort ( I think!?) ones from Loveson. They are full seat suede/leather and really comfy. Have a blue and a cream pair and as yet no damages- which is amazing for me, I get thru jods like nothing on earth!!! They are from local tackshop but sure you can search on line. Also ELT breeches are good but not sure you can still get them?
Whats a 'Clarino' full seat? Not heard that name before! Yer seen the Derby House ones thats where my white show ones are from was hoping to find some cheaper than £40.00 though as i'm poor!!
I've bought from Aldi and Lidl with prices ranging from £16 to £6 when marked down I've found them a really good fit (zips are not always reliable but they take back without a question)