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Safety Categories

Safety Category Meanings
SB Toe protection tested to 200 Joules impact and 15,000 Newtons compression
S1 Toe protection tested to 200 Joules impact and 15,000 Newtons compression. Antistatic and Energy absorbing heel.
S2 Toe protection tested to 200 Joules impact and 15,000 Newtons compression. Antistatic and Energy absorbing heel. Water resistant upper.
S3 Toe protection tested to 200 Joules impact and 15,000 Newtons compression. Antistatic and Energy absorbing heel. Water resistant upper. Penetration resistant sole.
S4 Toe protection tested to 200 Joules impact and 15,000 Newtons compression. Antistatic and Energy absorbing heel. Waterproof polymer upper.
S5 Toe protection tested to 200 Joules impact and 15,000 Newtons compression. Antistatic and Energy absorbing heel. Waterproof polymer upper. Penetration resistant sole.
PB Toe protection tested to 100 Joules
OB No protective toe cap
Marking
HRO Resistance to high heat 300ºc
FO Resistance to fuel of outsole
E Heel energy absorption 20 joules
P Penetration resistance 1100 newtons
CI Insulation against cold
HI Heat insulation of sole complex
WR Water resistant
WRU Water penetration resistant uppers
W/P Waterproof lined
A Antistatic range 100kΩ – 1000mΩ
M Metatarsal Protection
CR Cut Resistant Upper
AN Ankle Protection
SRA Passes SRA slip resistant standards: tested on ceramic wetted tile contamination with a diluted soap solution.
SRB Passes SRB slip resistant standards: tested on smooth steel contamination with glycerol.
SRC Passes SRC slip resistant standards: tested on ceramic tile contamination with a dilute soap solution and smooth steel contamination with glycerol.
Safety Category Meanings
SB Toe protection tested to 200 Joules impact and 15,000 Newtons compression
S1 Toe protection tested to 200 Joules impact and 15,000 Newtons compression. Antistatic and Energy absorbing heel.
S2 Toe protection tested to 200 Joules impact and 15,000 Newtons compression. Antistatic and Energy absorbing heel. Water resistant upper.
S3 Toe protection tested to 200 Joules impact and 15,000 Newtons compression. Antistatic and Energy absorbing heel. Water resistant upper. Penetration resistant sole.
S4 Toe protection tested to 200 Joules impact and 15,000 Newtons compression. Antistatic and Energy absorbing heel. Waterproof polymer upper.
S5 Toe protection tested to 200 Joules impact and 15,000 Newtons compression. Antistatic and Energy absorbing heel. Waterproof polymer upper. Penetration resistant sole.
PB Toe protection tested to 100 Joules
OB No protective toe cap
Marking
HRO Resistance to high heat 300ºc
FO Resistance to fuel of outsole
E Heel energy absorption 20 joules
P Penetration resistance 1100 newtons
CI Insulation against cold
HI Heat insulation of sole complex
WR Water resistant
WRU Water penetration resistant uppers
W/P Waterproof lined
A Antistatic range 100kΩ – 1000mΩ
M Metatarsal Protection
CR Cut Resistant Upper
AN Ankle Protection
SRA Passes SRA slip resistant standards: tested on ceramic wetted tile contamination with a diluted soap solution.
SRB Passes SRB slip resistant standards: tested on smooth steel contamination with glycerol.
SRC Passes SRC slip resistant standards: tested on ceramic tile contamination with a dilute soap solution and smooth steel contamination with glycerol.
Sole Material
N Nitrile Sole Nitrile rubber is a synthetic rubber copolymer of acrylonitrile and butadiene.  It is used in the protective industry due to its resistance to fuel and oils.  Nitrile rubber is more resistant than natural rubber to oils and acids, but has inferior strength and flexibility and has greater puncture-resistance than natural rubber.
PU Polyurethane (PU) Sole Polyurethane is a synthetic soling material. It is flexible and lightweight. Resistant to 130°C heat, oil, low concentration acids/alkalis and solvents.
R Rubber Sole The material generally identified as rubber is actually vulcanised caoutchouc. Caoutchouc is produced from the latex sap collected from caoutchouc trees. Because unvulcanised caoutchouc breaks when cold and stinks when warm, it is vulcanised which also makes it into a durable raw material. Resistant to 200°C heat, oil, low concentration acids/alkalis and solvents.* (* If marked HRO then 300°c)
VR Vulcanised Rubber Sole Vulcanisation is a chemical process for converting rubber or related polymers into more durable materials. Heat and pressure cause the rubber to crosslink and expand which fully vulcanises the sole. The sole is moulded into a very specific outer sole shape.
DD Dual Density PU Sole Polyurethane is a synthetic soling material. With dual density, you are given an inner foam layer and harder outer layer to ensure comfort and durability. Resistant to 200°C heat, oil, low concentration acids/alkalis and solvents.* (* If marked HRO then 300°c)
PVC PVC Sole Polyvinyl Chloride is a water resistant polymer resistant to minerals, vegetable oil and fats, animal by-product, manure, disinfectants and various chemicals. Resistant to 90°C heat, oil, low concentration acids/alkalis and solvents.
PVN PVC/Nitrile Sole Polyvinyl Chloride is combined with the tough rigid material Nitrile to produce a harder wearing sole unit. Resistant to 100°C heat, oil, low concentration acids/alkalis and solvents
PH Phylon Sole Phylon is made of compressed ethylene vinyl acetate foam pellets that is expanded by heat and cooled in a mould. This provides the wearer light, flexible and resilient cushioning.
RPH Rubber/Phylon Sole Phylon is made of compressed ethylene vinyl acetate foam pellets that is expanded by heat and cooled in a mould. EVA is combined with rubber in the midsole for its light, flexible and resilient cushioning.
RPU Rubber outsole/PU Interlayer Rubber and polyurethane combining to ensure a hardwearing comfortable light sole.
TPU Thermo Plastic Urethane (TPU) Sole TPU provides a softer, more flexible material for high quality unit soles in hiking boots and safety footwear. TPU offers superior wear resistance and abrasion resistance.
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