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Portwest FR501 Bizflame Work Stretch Panelled Flame Retardant Overalls

SKU: FR501
  • Work with confidence in high-heat environments
  • Move freely without restrictions
  • Keep your tools and essentials organised
  • Ensures maximum comfort and safety
  • Stays cool and comfortable even during intense activity
  • Looks as good as it performs
  • Built to last through tough jobs


Worldwide Delivery
Rated excellent on Google
Over 50 years welding expertise
Free delivery over £85 inc. VAT

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Portwest FR501 Bizflame Work Stretch Panelled Flame Retardant Overalls: Conquer Your Workday in Comfort and Safety

Ditch the discomfort, embrace peak performance with the Portwest FR501 Bizflame Work Stretch Panelled Flame Retardant Overalls. Engineered for industrial professionals facing heat and flame hazards, these overalls blend exceptional flame resistance with unmatched comfort and flexibility.

Step into superior protection and ease of movement with the Portwest FR501 Bizflame Work Stretch Panelled Flame Retardant Overalls. Crafted from flame-resistant Bizflame Plus fabric, these overalls shield you from sparks, welding splatter, and industrial heat, ensuring peace of mind in demanding environments. But protection doesn’t have to come at the cost of comfort. Strategic stretch panels at the knees, crotch, and back grant you unrestricted mobility for effortless bending, climbing, and crouching.

Embrace a sleek, contemporary design that’s as functional as it is stylish. Multiple pockets keep your tools and essentials organized, while adjustable hems and back elastication provide a personalised fit. Upper and lower back ventilation ensures breathable comfort, even during intense activity.

Whether you’re welding, working in refineries, or tackling other high-heat tasks, the Portwest FR501 Bizflame Work Stretch Panelled Overalls are your trusted partner in productivity and safety.


  • Bizflame Plus fabric: Flame-resistant for EN 11612, EN 11611, EN 13286, and A1+B1+C1 protection
  • Stretch panels: Knees, crotch, and back for superior comfort and flexibility
  • Multiple pockets: Chest pockets with pen partition, rule pocket, thigh patch pockets with flap closure, and back hip pockets
  • Adjustable hem: Accommodates various leg lengths
  • Back elastication: Personalised fit for optimal comfort
  • Upper and lower back ventilation: Enhanced breathability
  • Contemporary design: Professional appearance
  • Available in a range of sizes and colours: Find the perfect fit for your needs


Part No. Description
FR501NARS Navy – Small
FR501NARM Navy – Medium
FR501NARL Navy – Large
FR501NARXL Navy – Extra Large
FR501NARXXL Navy – XX Large
FR501NARXXXL Navy – XXX Large
FR501ORRS Orange – Small
FR501ORRM Orange – Medium
FR501ORRL Orange – Large
FR501ORRXL Orange – X Large
FR501ORRXXL Orange – XX Large
FR501ORRXXXL Orange – XXX Large


Portwest FR501 Datasheet

Portwest FR501 Sizing Guide

Portwest Product Page

Additional information
Free Delivery

Free Delivery




Medium , Large , XL , XXXL , XXL , Small


Navy , Orange


Click and Collect:
Free Click and Collect with no minimum spend from our warehouse on the Empress Park, Southampton with on-site parking. Once your order has been processed, we will advise you when it is ready for pickup.  Just want advice?  No problem.  Feel free to call in to speak to one of our friendly experts.

EWS Fleet Coverage Areas: 
Southampton | Eastleigh | Winchester | Alton | Farnham | Petersfield | Havant | Hayling Island | Waterlooville | Fareham | Portsmouth | Gosport | Chichester | Arun | Worthing | New Forest | Christchurch | Salisbury | Wiltshire | Test Valley | Basingstoke and Deane | West Berkshire | Reading | Hart | Waverley | East Hampshire | East Dorset | Hampshire | Bournemouth | Poole | Lymington | Ringwood | Verwood | East Preston | Goring-by-Sea | Lancing | Shoreham-by-Sea | Steyning | Bramber | Horsham | Adur

Nationwide Delivery (all items excluding gas cylinders):
Free UK mainland (England, Scotland and Wales) delivery on orders over £85 inc. VAT.
UK mainland delivery is £7.50 inc. VAT on orders under £85 inc. VAT.
UK islands and Northern Ireland shipping costs may vary.

UK Delivery for Gas Cylinders:
Shipping costs for gas cylinders are calculated at checkout once the delivery postcode is entered.

International Delivery:
Please contact us for an accurate delivery quote.



EN ISO 11612 A1+A2, B1, C1, E2, F1
EN ISO 11611 Class 2 A1+A2
EN 1149 -5
IEC 61482-2 IEC 61482-1-1 ELIM 8.6 CAL/CM²
IEC 61482-2 IEC 61482-1-2 APC 1
ASTM F1959/F1959M-12 ATPV=13.6 Cal/CM2 (HAF=82%)


Portwest FR501 Bizflame Work Stretch Panelled Overalls Navy & Orange Hero

Portwest FR501 Bizflame Work Stretch Panelled Flame Retardant Overalls

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