... with warm water, a toothbrush and some washing up liquid... I've never seen it studied but a detergent without a lot of added phosphate might work better than one with. Mine had flat shiny patches at nine and three o'clock and I focussed on them, working from the edges where there was texture or nap to try and tease up the suede again. Moderately successful, but there are still flat patches. Try steaming next? Jonathan