SAFETY FOOTWEAR - WELLINGTONS
Categories of footwear
SB Toe protection tested to 200 joules impact
S1 Safety footwear leather upper plus antistatic and energy absorbing heel
S2 As S1 plus water resistant upper
S3 As S2 plus penetration resistant sole to 1100 newtons
S4 Upper from all rubber or polymeric material
S5 As S4 plus "P" cleated sole