Spotted these on Amazon.
http://www.amazon.co.uk/Greys-Platinum-Breathable-Waders-SK/dp/B004XMNXY6/ref=sr_1_36?ie=UTF8&qid=1359931223&sr=8-36 (http://www.amazon.co.uk/Greys-Platinum-Breathable-Waders-SK/dp/B004XMNXY6/ref=sr_1_36?ie=UTF8&qid=1359931223&sr=8-36)
Seems like a good price.
A.