Remove insoles, place in old pillow case, zip tie the pillow case shut, put on a daily short wash probably about an hour at 30 degrees, small amount of detergent and white vinegar in the fabric softener tray, dry in sun or on radiator. Never fails.

Great piece of info thanks.

Oh and also with a bit of Lurpak for a wee treat.

Yes, big fan of Carr's Table Water Biscuits and a bit of blue.