Black Nubuck waterproof genuine cow leather upper with strong mould rubber toe with Double channel stitching, durability and long lasting resistance. Soft padded nylon collar. Nylon soft comfort tongue. Mesh lining with better wicking and WATERPROOF bootie construction. Strong plastic eyelets. EN ISO 20345:2004 standard Non metallic toe cap - with 200 joules for Impact and 15,000 Newtons Compression Reduce cold. EN ISO 20345:2004 standard Non metallic Anti-penetration midsole with 1,100 Newtons penetration. Original Cambrella removable footbed with Gel heel cushioning insert - Shock impact absorption, long lasting. Gravity II Triple density outsole / Phylon ~ Anti-Torsion System ~ Rubber Medium hardness phylon offer the extreme shock-absorption, for good cushioning and reduce weight plus more comfort feeling to your feet. Stabilizer arch provides and ideal balance of the stability and more durable. Nitrate rubber, oil and 300Â°C heat resistant, better grip, good flex point High abrasion resistant, durable, "ERP" - Extreme Rubber Protection design. Standard EN ISO 20345:2004 S3. Sizes 6-12. SRC : Outsole Slip Resistance BS EN ISO 20344:2004/A1:2007 (5.18); Tested on Ceramic Tile/Sodium Lauryl - Heel part 0.28; Flat Contact 0.32; Tested on Steel Floor/Glycerol Heel Part 0.13; Flat Contact 0.18.