Soft, comfort padded collar with breathable nylon mesh tongue. Original Cambrelle lining with high vapour permeability, breathable to let air in & moisture out. EN ISO 20345-2007 standard Non Metallic toe cap with 200 joules for impact and 15,000 Newtons Compression, lightweight. Gravity G-Sport Quaternary density outsole. Phylon Anti-Torsion System. TPU element provides shock absorption on heel. Long lasting Gel cushioning inserts with shock impact absorption. Nitrile rubber, oil and 300oC heat resistant. Toe bumper front design for foot protection & grip. Rubber heel striker improves braking. Sizes 3-12. 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;