Portwest S780 Orange Bizflame Rain Unlined High-Vis Flame Resistant Trousers

  • Highly breathable and waterproof PPE trousers
  • Ideal for strenuous, hazardous work in wet conditions
  • Buckle release braces and zipped ankles for easy access
  • Inherent anti-static properties due to carbon fibre elements
Our Price:  £39.95
Excl. VAT. (£47.94 Inc. 20% VAT)

Portwest S780 Orange Bizflame Rain Unlined High-Vis Flame Resistant Trousers

Waterproof yet still breathable, the Portwest S780 Orange Bizflame Rain Unlined High-Vis Flame Resistant Trousers are suitable for strenuous physical work in wet conditions. The trousers are highly visible from a distance and have been awarded several safety certifications, demonstrating that they will reliably protect you from industrial hazards.

What Can the Orange Bizflame Rain Unlined High-Vis Flame Resistant Trousers Do for Me?

The trousers have a variety of helpful features, including the following:

  • Waterproof: Waterproof fabric and taped seams to prevent water penetration, wind resistant to protect against wind chill
  • Breathable: Unlined for breathability and free movement, fabric draws moisture away from the body
  • Multi-Hazard: Anti-static properties and resistance to small sprays of chemicals and igniting fires
  • High-Vis: Reflective FR taping for increased visibility, qualifies for hazardous railway work
  • Functional: Braces feature ergonomic quick release buckle for easy access, waistband is fully elasticated for ultimate wearer comfort

Are the Trousers Available in Any Other Colours?

Yes, the trousers are also available in Yellow.

Who Can Use the Bizflame Rain Unlined Trousers?

The trousers are breathable and unlined, allowing for particularly strenuous physical work. The high-vis and waterproof specifications make them ideal for work outdoors, and the FR, chemical-resistant and anti-static properties suits the trousers for hazardous industrial work. Some of the professions and environments for which the trousers are designed are listed here:

  • Road work
  • Maintenance
  • Utilities
  • Construction
  • Surveyors
  • Railway work

Which Size Is Right for Me?

To establish the correct size for you please measure the circumference of your waist as illustrated in the diagram. Then, with reference to the table below, select the right option from the drop down menu at the top of the page.

Waist Measurement

Size Waist Measurement (cm)
Small 76 - 80cm
Medium 81 - 88cm
Large 89 - 96cm
Extra Large 97 - 104cm
XX-Large 105 - 112cm
XXX-Large 113 - 120cm

What Certifications Have the High-Vis Flame Resistant Trousers Received?

The Portwest trousers have undergone extensive testing, so you can be certain of your safety at work. Certifications include:

  • RIS-3279-TOM Issue 1
  • AS/NZS 1906. 4:2010
  • EN 343
    • Class 3:3
  • EN ISO 14116:
    • Index 1
  • EN 20471:
    • Class 1
  • EN 13034:
    • Type 6
  • EN 1149:
    • 5: Protects against electrostatic discharge in case of an explosion

What Do These Certifications Mean?

  • EN 1149: This standard demonstrates whether a garment protects against electrostatic discharge in environments such as petrochemical refineries where there is a risk of explosion
  • EN ISO 20471: This standard certifies whether an item of clothing is capable of visually signalling the user's presence, and assesses the durability of the high-vis qualities of the garment
  • EN 13034: This standard refers to a garment's ability to protect against spatters from dangerous liquid chemicals
  • EN ISO 14116: This standard specifies whether a garment will protect the wearer from occasional and brief contact with small igniting flames
  • EN 343: This standard outlines the garment's level of protection against wet weather, the first class number referring to water resistance, the second referring to breathability
  • RIS-3279-TOM: This standard determines whether a garment qualifies as suitably high-vis for working in the rail industry
  • AS/NZS 1906.4:2010: This standard specifies the requirements for high-visibility materials for use in industrial safety garments

The Portwest trousers are resistant to light sprays of chemicals and to brief contact with igniting flames. The trousers have achieved the highest possible rating for both breathability and waterproofing under EN 343. The trousers qualify as capable of signalling the wearer's presence, and are suitable for work on private roads and railways.

Is Further Information Available on These Certifications?

If you would like to find out more about the standards mentioned here please read one of our blogs on the subject. Please see the links below:

Key Features of the Unlined Flame Resistant Trousers

  • Breathable fabric draws moisture away from the body, keeping the wearer cool and dry
  • FR waterproof fabric and taped seams prevent water penetration
  • Wind resistant to protect against wind chill
  • Reflective FR tape for increased visibility
  • Zipped ankles for ease in fitting over work boots
  • Fully elasticated waistband for ultimate wearer comfort
  • Ergonomic quick release buckle on the braces for easy access
  • Back waist buggy for added protection
  • OEKO-Tex certified as free from harmful chemicals

Washing Instructions for the Portwest Trousers

  • Wash at 40°C or below
  • Do not bleach
  • Do not tumble dry
  • Do not iron
  • Do not dry clean
  • Use non-biological powder
  • Do not use softener

Technical Details of the Portwest Trousers

  • Shell Fabric: 98% Polyester, 2% Anti-static Carbon Fibre, Breathable, PU Coated 250g


Conformity Statement User Instructions 1 User Instructions 2 User Instructions 3
Declaration of Conformity User Instructions User Instructions User Instructions

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This item will be dispatched by 1st Class Royal Mail, DPD courier or UPS courier.

The estimated delivery time for this item is usually 1-3 working days after dispatch when ordered before 14:00, Monday to Friday (excluding Bank Holidays).

Please contact our Customer Care Team on 020 7501 0598 for an up to the minute delivery expectation for this product.

UK Delivery Charges

Certain orders delivered to the UK are subject to a delivery charge; refer to the table below for more information. Please note that all values are listed exclusive of VAT.

Order Value UK Delivery Charge
Up to £39.99 £4.95
£40.00 and over FREE

Coronavirus Update

Please note that, due to the current COVID-19 pandemic, our processing time may increase slightly. We would advise that orders may be set back by as much as five working days, though we are striving to keep our delivery schedule as close to normal as possible.

If you have been waiting over 7 working days for your order and would like an update, please contact our Customer Care team at helpdesk@workwear.co.uk.