What does S3S ESD HRO mean on a work boot?
The S3S ESD HRO rating means it is S3 to the 2022 standard with a metal free penetration resistant midsole; electrostatic discharge control, for handling sensitive electronics; a heat resistant outsole tested to 300 degrees, for hot surfaces; a scuff cap over the toe for extra abrasion resistance.
Is this a steel or composite toecap?
Composite. The Composite Action Mid Boot uses a non-metallic composite toecap, so it is lighter than steel and will not conduct heat or cold.
What size should I order?
Portwest footwear runs in full EU sizes (35-47). If you are between sizes or wear thick socks, take the larger size.
Can these handle hot surfaces?
Yes. The HRO outsole is heat resistant to 300 degrees for short contact with hot floors and surfaces.
Are they waterproof?
The upper is water resistant to shed rain and site wet. For standing water all day, choose a waterproof (S7) or wellington style.