Simms is actually coming out with felted boots again starting with a couple of their current boots like the Guide Boot. Guess they caved at the drop in demand and complaints that the alternative was not as good.
--In 2008 at the Denver flyfishing trade only show... Simms, Patagonia, William Joseph and Orvis... voluntarily agreed to phase out felt soled shoes by 2011. The voluntary action was applauded as an example of corporate concerns and accountability for the environment after several presentations on the potential devastating effects of invasive species transfer which may be linked to the product. This did also negate the need for legislation to ban the product. Felt soled boots are banned in New Zedland and in some states such as Maryland and Vermont (Ovris headquarters) and may soon be banned in Alaska. Although evidence is inconclusive that Rock Snot has a detrimental impact on fish.. it is somewhat offensive looking and may be the trigger for change .
--Simms is taking flack over their reversal whereas in fact the others didn't really pony up... leaving Simms to stand alone with no offering of felt.
--This leads many to believe the reversal has to do with not finding suitable alternatives which may not be the case further in my naive perspective...if the product was banned legislatively (an option I do not favour except as a last resort, as I believe cooperative compliance is more effective) there would be better alternatives found
--all of the companies are offering alternatives, it is up to us to give feed back on the new products and ensure they area continuously improved