Portwest
Portwest DX4 Winter Work Trousers DX458
Portwest DX4 Winter Work Trousers DX458
SKU:DX458-44-ZW
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Portwest DX4 Winter Work Trousers DX458
When you're working outdoors in harsh winter conditions, you need winter work pants that can genuinely handle what you throw at them. The Portwest DX4 Winter Work Trousers DX458 deliver exactly that. Built from robust 300D Oxford stretch polyester fabric with a water-repellent finish, these rain pants keep moisture out whilst allowing you to move freely. The clever zip-off design means you can remove the upper section completely, transforming them into standard work trousers when conditions change. Inside, the InsulatexPro lining provides excellent warmth without adding bulk, so you stay comfortable throughout your shift. With 16 storage pockets including dedicated compartments for tools, phones and equipment, plus reinforced knee pocket positions, these winter work trousers give you the functionality professionals demand.
Key Features
- Removable bib section converts to standard work trousers
- Water-repellent fabric with taped seams for weather protection
- InsulatexPro lining delivers warmth without excess weight
- 16 practical pockets for secure tool and equipment storage
- Adjustable leg length from regular to long fit
Recommendations from our Unishore Expert
These trousers are engineered for professionals who work in cold, wet environments and need clothing they can rely on. The stretch fabric works with your body rather than against it, meaning you're not fighting your clothing when you're climbing, bending or reaching. The layered approach to warmth through the lining means you won't overheat indoors, yet you've got genuine protection when conditions turn cold. What really sets these apart is the thoughtful pocket placement and the hammer loop with reinforced tool attachment points. The reflective striping keeps you visible during early starts and late finishes. The adjustable suspenders distribute weight evenly across your shoulders, which matters when you're wearing a full toolkit all day.
Product Features
- Material - 300D Oxford stretch polyester with InsulatexPro lining
- Pockets - 16 storage pockets including holster pockets with zips, multifunctional thigh pockets, knee pockets and hammer loop
- Closure - Zipper with button fastening
- Leg Length - Adjustable from regular to long
- Article Number - DX458
Standards and Safety
- Extremely water-repellent performance to EN343 Class 3
- Thermal insulation certified to EN342
- Knee protection compatible to EN14404 Type 2 Level 0 when used with approved kneepads
- CE and UKCA marked for European and UK standards compliance
- Reflective striping for enhanced visibility in low-light conditions
Characteristics
Characteristics
- Waterproof and taped seams prevent water ingress
- Extremely water-repellent environmentally friendly fabric, water rolls off the surface
- Detachable front and back for more options.
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- Folding rule pocket
- Hammer loop for secure tool carrying
- Multiple zippered compartments for secure storage
- InsulatexPro lining provides superior warmth without adding unnecessary weight can be added
- Reflective striping for increased visibility
- Knee pad pockets provided in 2 positions
- Phone pocket
- Elastic waist for ultimate wearer comfort
- Adjustable leg length from normal to long
- Tighteners with good grip on all pockets
- Slim fit design for optimal wearing comfort
- 16 storage pockets
- CE certified
Portwest DX4 Winter Work Trousers Standards
- EN 343 Class 3:1 WP 20,000mm
- EN14404: 2016 + A1: 2010 Type 2 Level 0 (when used in combination with S156)
Material & washing instructions
Material & washing instructions
Size chart
Size chart
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The table below is the official Portwest size guide, you can use this as a reference to determine which size you need for Portwest clothing.
*All lengths in centimeters
**Information based on size chart from Portwest Catalogue
When in doubt and when printing/embroidery, we always recommend trying on first!
|
Mate |
Waist cm |
Waist inch |
|
|---|---|---|---|
| XS | 42 | 68 cm | 14 inch |
| 44 | 72 cm | 26 inch | |
| S | 46 | 76 cm | 30 inch |
| 48 | 80 cm | 32 inch | |
| M | - | 84cm | 33 inch |
| 50 | 88 cm | 34 inch | |
| L | 52 | 92 cm | 36 inch |
| 54 | 96 cm | 38 inch | |
| XL | 56 | 100 cm | 40 inch |
| - | 104 cm | 41 inch | |
| XXL | 58 | 108 cm | 42 inch |
| 60 | 112 cm | 44 inch | |
| 3XL | 62 | 116 cm | 46 inch |
| - | 120 cm | 47 inch | |
| 4XL | 64/66 | 124 cm | 48 inch |
| 68 | 128 cm | 50 inch | |
| 5XL | 70 | 132 cm | 52 inch |
| 72 | 136 cm | 54 inch | |
| 74 | 140 cm | 56 inch | |

About Unishore Workwear
About Unishore Workwear
Unishore Workwear has been a specialist in workwear and personal protective equipment since 1985. We offer:
- Fast delivery
- Competitive prices
- Embroidery and printing in-house
