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