Hi, I can't take any credit for this method as I followed instructions from the following links.
I must say though, if you use a steamer do keep an eye on the water level as excess water in the fleece will drip down and may cause it to overflow and do not use the steamer for any food preparation.
useful sites jaynee.co.uk
I hope you found these as useful as I did.
We spent this morning being jostled by large crowds at Lincoln Christmas Market, far too many people ignored the one way walk round directions and we gave up once we had bought the three presents that were on our list and retired to the local bike shop for a cup of hot chocolate!!