EN ISO 20345:2011 – Safety Footwear for Professional use

Classification I Made from leather and other materials, but not all-rubber or all-polymeric types)

SB – Basic requirement for safety footwear met, 200J toecap.
S1 – Basic requirement plus closed and energy absorbing seat region and anti-static.
S1P – As S1 plus penetration resistance midsole.
S2 – As S1 water penetration and absorption.
S3 – As S2 plus penetration resistance midsole and cleated sole.

Classification II - (all-rubber or all-polymeric types)

SB – Basic requirement for safety footwear met, 200J toecap.
S4 - Basic requirement plus closed and energy absorbing seat region and anti-static.
S5 - As S4 plus penetration resistance and cleated sole.

Toecap protection - 200J Impact resistant and 15,000 newton’s compression.
Midsole Protection - 11,000 newton’s.