Product Description Blackrock is a S3 SRC protection class safety boot recognised for its width that can be more suitable for wider feet. Developed with a water repellent nubuck leather, a breathable lining textile and an abrasion resistant double density PU sole. Foot health and comfort are ensured by the composite toe cap and flexible kevlar midsole making it a 100% metal free product. This product is incorporated with Clima Cork System technology which regulates the temperature of the feet.