WRU
The upper is water resistant
HRO
The outsole can resist up to 300°C for up to 1 minute. This is standard on SB, S1, S2 and S3
CI
Insulation against cold, tested for 30 minutes at -20°C
HI
Insulation against heat, tested for 30 minutes at 150°C
P
Penetration resistance
C
Conductive
A
Anti-static
I
Electricity insulating footwear
WR
Water Resistance
M
Metatarsal Protection
AN
Ankle Protection
CR
Cut Resistant Upper
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