Classic rubber boots with neoprene lining that are comfortable even on a long expedition. Härkila Vibram sole 3mm neoprene lining and stretch gusset at the top. The boot’s fleece lining offers increased insulation and helps keep the foot dry by wicking condensation and moisture away from the skin. Classic rubber boots with neoprene lining that are comfortable even on a long expedition. Härkila Vibram sole 3mm neoprene lining and stretch gusset at the top. 2-year warranty against manufacturing defects. Fleece lining offers increased insulation and helps keep the foot dry.