Okay, I've given up on Search Engine results. Seems everyone with a tutorial on it is American, and I want products I can buy here. Recommendations appreciated for leather jacket waterproofing products.
I use Mink Oil or Renapur. Leave leathers in a warm room or outside in the sun (when weather is better) to ‘open the pores’ - apply with a sponge, then leave for an hour, then wipe excess off with a cloth. Obviously any zips, neoprene sections etc will not be treated and thus not waterproof. Hope that’s helpful.
I've ordered Renapur. Also - as recommended by the people I bought my bike jacket from - Auto Glym. I'll use the Renapur on my flying jacket.