Features of the Grisport Hercules Brown Safety. A level of performance in terms of comfort and strength defined by the harmonised standard The presence of a protective toe cap which can withstand an impact of 200 joules on the toe, with a residual height of 14mm min size (for a size 42) A compression test of 15kN (c.a. 1.5t) with a residual height as per above. Additional protection as marked on the footwear and corresponding to the following table: The European Safety Standard EN ISO 20345:2004 or EN345-1:1992 marking stamped on safety footwear provides: Puncture Resistant sole up to 11KN Antistatic 200 J toe cap & compression of 15KN Energy absorption in heel area Water resistant upper materials for 60 mins Heat Resistant Outsole – withstands 300C for up to 60 seconds Heat Insulating – up to 150C Sizes: 5 – 13 UK Grisport Hercules Brown Safety Boot High Leg