Specialized work line which is capable to withstand even harsher environment. Using VIBRAM#100 SOLE(FIRE&ICE), a robust pair with increased grip strength. Furthermore, with the “Norwegian Welted Process” used for the new model, waterproofness improved as well. Each model is naming of workers such as Forester, Lineman, Plumber. A pair you would like to wear whether enjoy outdoor activities or work.