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  • WORLDWIDE SHIPPING

  • TRUSTED SINCE 2006

  • FREE DELIVERY OVER £99

Portwest S351 Sealtex AIR Waterproof Breathable Work Trousers EN 343

Product Code: OBRECT/S351

Regular price From £20.85 exc VAT £25.02 inc VAT
Shipping calculated at checkout.

  • 4-Way Stretch Fabric
  • Fully Welded Seams
  • Wipe-Clean Finish

Was dubious about buying, a bag, of the beeswift mp1 gloves, as I was actually looking for an alternate brand, I've had gloves before that were all bundled together, where the rubber was too hard and the material like an old rope, the company sent them out really fast delivery, individually wrapped, premium gloves, really happy, top drawer, as these will be stored in the garage, no damp or spider issues, big thanks to George @ gloves & stuff.

A Andyvia Trustpilot

Decent gloves at a reasonable price. Delivered within a good delivery window. These gloves have reasonable longevity in medium workloads.

Brett Seedhouse Brett Seedhousevia Trustpilot

Good company to buy from; just took a bit longer than expected (9 days)from order to being despatched for delivery. The response was quick when I emailed them with a query. Will definitely use again.

C Cherie Rowdenvia Trustpilot

I've always had a good experience with this family run business, always able to ring and get any queries sorted. Quick delivery and products all as described on the website.
The process from order to delivery is smooth and stress free. I would definitely recommend them.

C Claire Davisvia Trustpilot

What an amazing company. I bought safety shoes from them and could not fault them with anything. Communication from the seller was spot on. Kept me updated on delivery times and delivery was super quick as well, not to mention that they had the best price out there. These shoes are so comfy :). Thank you very much, I would happily use them again and highly recommend to anyone. I am glad I did not cancel my order because of the previous bad reviews.

C Customervia Google

Got my product shipped to ireland and was impressed with how quick it arrived.
Price was still cheaper even after I paid the customs fee. Would recommend and I will be using again 🤝

D Derek Griffinvia Trustpilot

A pleasure to do business with George, Paul and the team. Have been using them for years and will continue to do so. Great customer service, speedy shipping and an extensive range of products.

M Marcus Lewisvia Google

Ordered some safety trainers as they offered the fastest delivery and lowest price. My order was a day late but this was due to a supply chain issue with the manufacturers. George kept me up to date and they still arrived before other company’s expected delivery date. The quality of the trainers are amazing and I will be definitely using this company again for my future supply’s.

M Melissa Alexandervia Google
Fast Delivery

Next day delivery for in stock orders placed before 1:00pm.

Portwest S351 Sealtex AIR Waterproof Breathable Work Trousers EN 343

Regular price From £20.85 exc VAT £25.02 inc VAT

Description

Weather-proof trousers that actually let your legs breathe

The Portwest S351 Sealtex AIR trousers are built for workers who spend long days outdoors in unpredictable weather. You get serious waterproof protection without the sweat-soaked discomfort of heavy, non-breathable fabric. The 4-way stretch keeps you moving freely whether you're climbing, bending, or squatting on site.

Key Features:
  • EN 343 Class 3 Protection: Meets the highest waterproofing and breathability standard. Water beads right off the surface, and welded seams seal out moisture at stress points where water tries to sneak through.
  • Lightweight Sealtex Air Fabric: At just 180g, this unique polyester tricot knit construction breathes properly during physical work. You stay dry from sweat and rain – not just one or the other.
  • PFAS-Free Texpel™ Splash Eco Finish: Water-resistant without harmful chemicals. The finish causes moisture to bead away instantly, keeping the fabric surface dry and extending the life of the trousers.
  • 4-Way Stretch Fabric: Moves with your body, not against it. Bending down, reaching up, or working in tight spaces feels natural – no restriction, no tearing at stress points.
  • Wipe-Clean Finish: Mud, dust, and light spills wipe clean in seconds. No need for heavy washing after every dirty job.
  • Comfort Features: Fully elasticated waistband adjusts to fit comfortably all day. Snap-adjustable hems give a secure, tailored fit over work boots without bunching or dragging.

Portwest designed these trousers for the realities of outdoor work. Whether you're in construction, utilities, facilities management, or any role that demands all-weather durability, the S351 Sealtex AIR delivers protection without compromise. Order now from Glovesnstuff and experience the difference proper breathable waterproofs make.

Safety Standards

EN 343 EN 343
EN 13034 EN 13034
Waterproof Waterproof
Breathable Breathable
Windproof Windproof
  • EN 343 Class 3:2 X - Waterproof protection (WP 5,000mm, MVP 7,752g/m2/24hr)
  • EN 13034 Type PB [6] - Chemical protection against liquid chemicals
  • CE marked
  • UKCA marked

Size Chart

Delivery Information

UK Mainland Delivery

Free delivery on orders over £99 (ex VAT). For orders under £99, we charge only the actual carrier cost for next-day delivery - no inflated prices or hidden fees.

All orders include tracking via text and email notifications.

Scottish Highlands, Northern Ireland & Offshore

Additional delivery charges apply. Select your delivery area at checkout to see the exact cost.

Order Confirmation

You'll receive an email confirmation when you order, followed by a VAT invoice with tracking details once your order is packed.

Collection

Orders can be collected from our warehouse. Place your order online, by phone, or email, and we'll contact you when it's ready for collection.

International Delivery (EU & Worldwide)

We ship worldwide without UK VAT.

Important:

  • Your country's customs duties apply and must be paid on delivery
  • Business customers: We require your VAT/tax number for customs clearance
  • Refused deliveries: If an order is refused due to non-payment of duties, return shipping costs will be deducted from any refund
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