Upper made of breathable non-woven material. Soft, moisture-wicking lining. EXOLOK Supportive Lacing System. Shock absorbing EVA midsole. Oil and slip resistant rubber outsoleIntegrated TPU arch support plate. FOOTBED first sole in EnduraStride PU. CSA approved, super antistatic (SD+) composite toe cap and plate. TERRA FIRMA-FLEX??: no metal elements.