or possibly try something like in this http://leatheroaks.org/Waders/Green2.html
wellies work well for me
I swear by these davehttp://www.ebay.co.uk/itm/DIRT-BOOT-NEOPRENE-WELLINGTON-PRO-SPORT-MUCK-BOOT-SHOE-/181768345917?var=&hash=item2a523cd93d
Do they have flashing lights as well?