Mercury Black Non-Metallic Waterproof Safety Boot Size 11. Black leather waterproof safety boot, fully Non-Metallic. Features a padded collar and tongue for added comfort, composite toe cap and midsole protection. Includes a waterproof and breathable inner lining with Thinsulate. The dual density PUR heat resistant outsole has an anti-scuff toe guard and is anti-static. This is a good all-round waterproof safety boot suitable for a wide range of outdoor applications. Apache Mercury Safety Boots are made with Black Leather upper and a waterproof and breathable membrane. They are Heat Resistant to 300 Degrees C and have a Phylon Rubber sports sole. Closure is by Lace-Up. Features include Comfort and Water Resistance. Shoe Width is Wide. Item Weight: 2.31 KG. Heel Height: Low (2.5-4.9cm). Shoe Shaft Height: Ankle. Boot Style: Safety Boots. Safety Features: Heat Resistant Sole, Composite Toe Cap, Metal Free, Anti-Static Sole. Safety Standard: EN ISO 20345 S3 WR HRO SRC. Product Code: MERCURY/BLK.