Unisex Ankle Rain boots ,PU outsole steel toe cap boots ,pvc safety boot

1.

SB:

Basic requirement, toe protection above 200 joules

2.

SBP:

SB + penetration resistant above 1100 newtons

3.

S1 :

SB + anti-static between 100K to 1000M Ohms

4.

S1P:

S1 + penetration resistant above 1100 newtons

5.

S2:

S1 +  water resistant upper leather

6.

S3:

S2 + penetration resistant above 1100 newtons

7.

S4:

Anti-static, Heel energy absorption, fuel & oil resistant

8.

S5:

S4 +  penetration resistant above 1100 newtons 

9.

O1:

Anti-static, heel energy absorption

10.

O2:

O1 +  water resistant upper leather

11.

O3:

O2 +  penetration resistant above 1100 newtons