• Wetsuit, Sisstr 7 seas 4/3, with a blue and slate-grey color-block design, purple side panels, black knee pads, and chest zip.
  • Women’s Sisstr 7 seas 4/3 wetsuit in slate blue neoprene, with a high neck, chest zip and black knee panels.
  • Sisstr 7 seas 4/3 women’s wetsuit in mustard yellow neoprene, with a chest zip and black knee panels.
  • Womens wetsuit, Sisstr 7 seas 4/3, olive green stretch neoprene with tan side panels and black knee pads.
  • Wetsuit, Sisstr 7 seas 4/3 in burgundy stretch neoprene with black knee panels and a chest zip entry.
  • Womens wetsuit, Sisstr 7 seas 4/3, navy neoprene with teal side panels, black knee patches and chest zip entry.
  • Sisstr 7 seas 4/3 women’s wetsuit in black stretch neoprene, with a long-sleeve design and chest zip entry.
  • Women’s Sisstr 7 seas 4/3 wetsuit in olive green and tan neoprene, with long sleeves and a full-length design
  • Wetsuit Sisstr 7 seas 4/3 in olive green and tan neoprene, with black knee panels and chest zip entry.
  • Sisstr 7 seas 4/3 chest-zip wetsuit in muted blue neoprene, with long sleeves, full-length legs and subtle pink accents.
  • Sisstr 7 seas 4/3 wetsuit in muted blue stretch neoprene, with long sleeves, full legs and contoured seam panels.
  • Womens wetsuit in mustard yellow smooth neoprene, Sisstr 7 seas 4/3 with long sleeves and full-length legs.
  • Sisstr 7 seas 4/3 women's wetsuit in periwinkle blue neoprene, with a chest zip, black knee panels and pink logo.
  • Sisstr 7 seas 4/3 wetsuit in periwinkle blue stretch neoprene, with long sleeves and clean panel seams.
1 8

Sisstr 7 seas 4/3 chest zip wetsuit

Sisstr 7 seas 4/3 chest zip wetsuit

Color
Size

Sisstrevolution 7 seas 4/3 

You are braving cold temperatures and need a thicker wetsuit. The 7 Seas 4/3 women’s wetsuit with a chest zip entry. Here’s to you Sis!

Sisstrevolution wetsuit Made for Cold Water: 51 - 58° F / 11 - 14° C

Ladies wetsuit 4 3 WARM & STRENGTH
• 100% Super Stretch
• Light limestone based neoprene
• Light, Warm, Soft, More Stretch, easy to put on and take off, allows for more freedom of movement
• Thermal hollow fiber lining insulates heat and dries fast
• DOPE DYED Fabric- a softer, eco-friendly, anti-fade fabric made by Bluesign approved mills

4mm wetsuit womens FIT
• Tailored fit which is anatomically correct, engineered body lines with minimal seams for unrestricted warmth and performance

DURABLE & WATERTIGHT
• Watertight Chest-Zip entry and minimal bulk with contoured water-tight design
• Sisstr's super stretch Neo 2.0 tape allows for maximum seam sealing have unrestricted stretch and comfort
• Triple glued, double blind stitched seams. Liquid taped cuffs, seals to prevent flushing
• Knee pad- SUPRATEX abrasion resistant for flexibility and strength
• Glideskin on the neck seals to skin to prevent flushing
• Easy access secure key cord

Sisstrevolution winter wetsuit CARE
• Treat with special care! Rinse wetsuit thoroughly inside and out with fresh water
• Hang dry in a cool shaded area and avoid hanging in direct sunlight. When changing, avoid standing on the wetsuit.

WETSUIT WARRANTY
• 1 year from original purchase date on all seams.
• 1 year from original purchase date on neoprene.

£299.95 GBP
£299.95 GBP
Sale Sold out
Tax included. Shipping calculated at checkout.
View full details
{
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 Sisstr 7 Seas 4/3 wetsuit designed for?
The Sisstr 7 Seas 4/3 women’s wetsuit is made for cold water from 51–58°F (11–14°C). Its thermal hollow-fiber lining is described as insulating heat and drying fast.
What does the 4/3 thickness mean for this wetsuit?
The Sisstr 7 Seas 4/3 is described as a 4/3 women’s wetsuit for cold-water conditions. The product description also highlights its light, warm, soft, stretchy construction.
How does the chest-zip entry work on the Sisstr 7 Seas 4/3?
This wetsuit has a watertight chest-zip entry with a contoured, water-tight design and minimal bulk. The description says its stretch materials make the suit easy to put on and take off.
How should I care for the Sisstr 7 Seas 4/3 wetsuit?
Rinse the wetsuit thoroughly inside and out with fresh water, then hang it to dry in a cool, shaded area. Avoid direct sunlight and avoid standing on the suit while changing.
What warranty comes with the Sisstr 7 Seas 4/3?
The product description states a one-year warranty from the original purchase date on both the seams and the neoprene.

More

1 5
Comparison of non-polarised vs polarised lenses over a beach and mountain landscape.

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 blue polarised lenses by Union Of Surf

    Sunglasses

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

  • Man wearing pink polarised sunglasses drinking coffee outdoors.

    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.

  • Black cylindrical premium packaging for Shaka Walnut Edition sunglasses.

    Eco Packaging

    Perfectly packaged just for you. Our cardboard tubes make great gifts, even if it is for you!
Our Sunnies
1 2
Women’s Sisstr 7 seas 4/3 wetsuit in slate blue neoprene, with a high neck, chest zip and black knee panels.

Sisstr 7 seas 4/3 chest zip wetsuit

Blue Moon / UK4

£299.95