Portwest S434 Iona Lite Bomber Jacket

  • Waterproof, reflective bomber jacket
  • For men working outdoors
  • Reflective tape for visibility
  • Quilt lined for thermal insulation

Portwest S434 Iona Lite Bomber Jacket

The Portwest S434 Iona Lite Bomber Jacket is resistant to both cold and wet, the sturdy Oxford polyester fabric is lined with thermal fleece and finished with a water-resistant fabric coating. The jacket also features reflective tape for visibility, and a cleverly designed zip-out ID pocket which can be used for carrying or storing tools and personal belongings.

What Can the Portwest Iona Lite Bomber Jacket Do to Help Me?

The jacket has several useful features:

  • Thermal: Fleece lined collar, knitted cuffs and quilt lining ensure thermal insulation and warmth
  • Waterproof: Sealed seams, water-resistant fabric covering and concealed hood all ensure the jacket is waterproof
  • Visible: Reflective tape increases visibility
  • Practical: Seven pockets, including zip-out ID pocket, for storage, and two-way zip and stud front opening for quick and easy access

Who Is the Portwest Jacket For?

The Portwest Jacket is ideal for men working in cold, wet, low-light conditions. The fleece lining will keep you warm, the water-resistant fabric finish will keep you dry and the reflective taping ensures you're easy to see.

Which Size Is Right for Me?

To find the correct size for you, please measure the circumference of your chest as outlined below. Once you have done this, match your size to the table below and select the correct size by clicking on the drop-down menu at the top of the page. If you are between sizes, we would recommend choosing the larger size.


Size Chest Measurement
Extra Small 80 - 88cm
Small 92 - 96cm
Medium 100 - 104cm
Large 108 - 112cm
Extra Large 116 - 124cm
XX-Large 128 - 132cm
XXX-Large 136 - 140cm

What Is the EN 343 Standard?

The EN 343 Standard outlines the garment's level of protection against wet weather. The garments are rated on their response to precipitation, fog and humidity, and then on their breathability under those conditions. The jacket has a 3:1 rating, meaning that it has the highest level of rain protection but is not classified as breathable under EN 343. 

Level Water Resistance Breathability
Level 1 Minimum level of rain protection Not classified as breathable under EN 343
Level 2 Intermediate level of rain protection Intermediate level of breathability
Level 3 Highest level of rain protection Highest level of breathability

What Is EN 342 Standard?

Products which are certified in accordance with the EN 342 Standard are designed to keep you protected from the cold. A cold environment is classified as anywhere the temperature is -5°C or lower. The Jacket has been classified as protective against the cold. 

What Is the Iona Lite Collection?

When functionality, added visibility and waterproof protection is required, look no further than the Iona Lite Collection. These garments are certified to the highest waterproof standard and are seam taped to ensure total protection against the rain. 

What Is the 300D Oxford Weave Material?

The jacket is made from 300D Oxford Weave Material. This 100% polyester fabric has superb abrasion and tear resistance. The outer side of the fabric has a water and stain repellent coating keeping it clean, and the polyurethane (PU) coating on the inside which makes the fabric durable and waterproof. 

What Is Texpel Splash Water Repellent Finish?

The jacket features a Texpel Splash water-repellent finish. This means that water beads away from the fabric surface, all while allowing for maximum breathability. Texpel also repels dirt, prevents stains and enhances the removal of any stains that do occur. 


What Is Portwest's Select Rainwear Range?

The Portwest Rainwear collection allows for optimum outdoor performance. These garments are made from highly waterproof and breathable fabrics, ideal for protecting against harsh weather conditions. If you would like to know more about the brand, please read our blog on Portwest.

How Should I Care for the Jacket?

  • Wash at 40°C or below
  • Do not wring
  • Drip dry
  • Do not bleach
  • Do not tumble dry
  • Do not dry clean
  • Do not iron

What Are the Key Features of the Portwest Iona Lite Bomber Jacket?

  • CE certified
  • Abrasion resistant Oxford polyester
  • Durable and waterproof jacket with sealed seams
  • Taped seams to provide additional protection
  • Reflective tape for increased visibility
  • Quilt lined for thermal insulation
  • Seven pockets for storage including a phone pocket
  • Stud front opening for quick and easy access

Technical Specifications

  • Shell Fabric: 100% Polyester, 300D Oxford Weave with a stain resistant finish, PU Coated 190g
  • Lining Fabric: 100% Polyester 60g
  • Filling Fabric: 100% Polyester 170g

Conformity Statement

Declaration of Conformity
Declaration of Conformity

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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.