Cyclismo174 wool this is the wool model of the cyclismo the fact that defeet make these from american wool adds even more to this story using all american wool makes this one of the most sustainable products on the market while other wools are shipped back and forth across the world to get sourced washed dyed and knit defeet39s wool never needs to leave the united states cyclismo wool makes the best footprint in wool socks by making the smallest footprint possible on the environment