I have just had a pair of what were felt soled wading boots re-soled with the material called Vibram which is a dimpled rubbery kind of material with plenty of grip.
I had it done locally in a shop in Barnards Green, Malvern so thought that I would pass it on to you all in case you ever need the same done to your boots. As a footnote I believe that Vibram is more environmentally friendly as it is less likely to carry harmful organisms which felt soles possibly could. They made an excellent job of it by the way.
So, here are the detail: www.eliteservicecentre.co.uk/ 99 Barnard’s Green Rd, Malvern WR14 3LT 01684 561100