• Beau Young Wearing thermal insulated merino lined Coastlines Wetsuit
  • Professional Surfer Kalani Ord Surfing in New Zealand wearing a Coastlines Wetsuit
  • Beau Young Wearing a Coastlines Chest Zip Thermal Surf Wetsuit
  • Close Up Image of the closure on a Chest Zip Coastlines Wetsuit
  • 4 Way stretch Duraflex knee pad on a Coastlines Surf 4/3 Merino Wetsuit
  • Sealed cuff on a thermal coastlines wetsuit
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Merino Insulator Series 4/3 Chest Zip Steamer.

Merino Insulator Series 4/3 Chest Zip Steamer.

Size

This suit is perfect for those frostbitten, rain-soaked, icey wintry mornings. It features a warm woolly thermal lining, keeping you warmer and comfier than anyone else in the water. All seams are constructed with a durable seal which consists of gluing and blind stitching. In addition, all critical areas are taped. This suit is designed to amplify your performance in the water, a more contemporary cut that contours with your body's natural movements.

This suit is designed for very cold climates, it is optimal in water temperatures from 10C to 16C



 



 







£398.00 GBP
£398.00 GBP £398.00 GBP
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Specifications

Polarised Lens

Shipping

Dimensions

Lens Info

Wood

Mini Malibu circular sunglasses with pink camo frame, rose gold polarized lenses, and wooden arms

Free GLASSES CASE WITH EVERY PAIR

Protect your sunglasses in style. Every pair of Union of Surf sunglasses now comes with a free glasses case — designed to keep your shades safe from scratches, dust, and everyday wear.

Frequently Asked Questions

What water temperatures is the Merino Insulator Series 4/3 Chest Zip Steamer best suited for?
The Merino Insulator Series 4/3 Chest Zip Steamer is designed for very cold climates, optimized for water temperatures from 10°C to 16°C.
How does the thermal lining in the Merino Insulator Series suit enhance my comfort?
The suit features a warm woolly thermal lining that helps keep you warmer and more comfortable during cold water sessions.
Are the seams of the Merino Insulator Series suit durable and water-tight?
Yes, all seams are constructed with a durable seal that includes gluing and blind stitching, with critical areas taped for added water resistance.
What kind of cut does the Merino Insulator Series suit have?
This suit has a contemporary cut that contours with your body's natural movements, designed to enhance your performance in the water.
Can I use the Merino Insulator Series suit in slightly warmer or colder water, or is it limited to 10-16°C?
The suit is optimized for water temperatures between 10°C to 16°C, and its performance in significantly warmer or colder conditions may not be ideal.

More

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Infographic showing how polarised sunglasses work. What is it like to look though a pair of sunglasses on a sunny day.

Wav P Lens tech got you covered against glare.

Wav P Lens Tech protects against glare with advanced polarised lenses, cutting reflections from water, roads and snow for clearer, sharper vision. It boosts color and contrast while reducing eye strain, making it ideal for driving, coastal walks and everyday outdoor use. Lightweight and durable for active lifestyles.

Our Lenses

Sustainble Fashion Sunglasses

  • Fistral Wood Look Sunglasses with polarised lenses and natural wood finish

    Sunglasses

    Discover the allure of wooden sunglasses. Experience the perfect blend of style and sustainability.

  • Sunglasses Sale

    Largest Selection of Styles

    With over 12 unique styles and 22 different lense options we one of the largest selection of wooden sunglasses to suit all your style needs.

  • Union of Surf cylindrical packaging with UOS logo, eco-friendly sunglasses box

    Eco Packaging

    Perfectly packaged just for you. Our cardboard tubes make great gifts, even if it is for you!
Our Sunnies
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Beau Young Wearing thermal insulated merino lined Coastlines Wetsuit

Merino Insulator Series 4/3 Chest Zip Steamer.

L

£398.00