Waterproof full-grain leather upper with sealed seams. Exclusive integrated tie-rod bracelet. Breathable, moisture-wicking and abrasion-resistant lining. 200g Thinsulate insulation and CLEANFEET odor-fighting treatment. Non-slip rubber outsole, strong grip, preventing damage by foreign objects. Direct injection molded PU cushioning midsole and PU toe cap. FOOTBED anatomical sole in dual-density PU. CSA approved, electrical shock resistant (ESR) composite toe cap and plate. TERRA FIRMA-FLEX: no metal elements.