Very comfortable and light for any type of activity throughout the day. 100% metal-free: helps reduce weight and improves thermal insulation. Manufactured with the best BASF polyurethane. Sole designed to provide good stability and grip on all types of surfaces. SRC sole: great grip even on wet surfaces to provide greater safety. They do not break or crack at low temperatures, nor with extreme changes in temperature. antistatic. Antibacterial inner lining. Abrasion resistant sole. CI: certified for thermal insulation -30ºC.