WETSUIT GUIDE
A wetsuit should do more than keep you warm. It should support efficient body position, reduce drag and allow you to swim with controlled, unrestricted movement.
At Zone3, every wetsuit is built on the same performance philosophy, hydrodynamic efficiency, balanced buoyancy and race-day reliability whether you’re lining up for your first open water swim or chasing marginal gains at the front of the field.
This guide explains how our wetsuits work and helps you choose the one aligned with your level and ambition.
Why Buoyancy Matters
Nearly all swimmers benefit from the same fundamentals in the water:
- Improved body position
- Reduced resistance
- Greater freedom of movement
- Conserved energy over distance
Zone3 wetsuits are engineered to:
Lift the body into a more efficient swimming position Reduce drag through the water Support a natural, unrestricted stroke Preserve energy for what comes next
The result isn’t just speed — it’s efficiency. Swimming with less effort means more energy for the bike and run, or greater confidence and control in open water.
Zone3 wetsuits have been independently tested at Loughborough Sport to assess their impact on swim speed, stroke efficiency and physiological load.
Controlled testing across different ability levels confirmed measurable improvements across multiple models in the range.
Performance is not isolated to one suit. It runs throughout the collection.
The refinement lies in how each wetsuit distributes buoyancy, enhances flexibility and supports race focus.
Absolute revelation!
My first 'swim' wetsuit after using standard wetsuits. Absolute revelation! easy to get on and off, warm even in April UK waters (with neoprene ... Read More
My first 'swim' wetsuit after using standard wetsuits. Absolute revelation! easy to get on and off, warm even in April UK waters (with neoprene swim cap). Flexible so no impact on my technique. Love it.
Read LessWarren P.
Active-Flex Wetsuit
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zone 3 advance wetsuit fits perfectly
Having previously tried other brands which I won’t name zone 3’s advance wetsuit is the best for fit being true to size and performance being gr... Read More
Having previously tried other brands which I won’t name zone 3’s advance wetsuit is the best for fit being true to size and performance being great. I’m quite large build and have big shoulders so have found issues with other wet suits, zone 3 advance wetsuit fits perfectly over shoulders with no issues with zipping up. I also used to complete Deva T100 triathlon and it is smooth to remove in transition. I would highly recommend zone 3 to anyone completing OWS or Triathlons, best brand around
Read LessDavid W.
Advance Wetsuit
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I love my Agile Wetsuit!
I love my Agile Wetsuit! It is very comfortable to swim in and as easy as a wetsuit will ever be to get on! I LOVE THE PINK ON IT! It seems to b... Read More
I love my Agile Wetsuit! It is very comfortable to swim in and as easy as a wetsuit will ever be to get on! I LOVE THE PINK ON IT! It seems to be very well designed for an entry level wetsuit.
Read LessLynne B.
Agile Wetsuit
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I had struggled before with getting the perfect fit
Really pleased with my new Advance suit. I had struggled before with getting the perfect fit from other brands but have found that this suit is ... Read More
Really pleased with my new Advance suit. I had struggled before with getting the perfect fit from other brands but have found that this suit is really well made and great to swim in. Usually an M but picked the ML based on weight.
Read LessRichard
Advance Wetsuit
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Compare the Range
Use the comparison guide below to understand how buoyancy profiles, flexibility and materials evolve across the range — and find the wetsuit engineered for your level.
The difference isn’t whether they perform.
It’s how they perform for you.
| Ratings | ||||||||
|---|---|---|---|---|---|---|---|---|
LEVEL |
ELITE / PRO
|
COMPETITION
|
PERFORMANCE
|
INTERMEDIATE
|
FOUNDATION
|
ENTRY
|
LEISURE
|
WINTER TRAINING
|
BUOYANCY |
|
|
|
|
|
|
|
|
SPEED |
|
|
|
|
|
|
|
|
FLEXIBILITY |
|
|
|
|
|
|
|
|
ENDURANCE |
|
|
|
|
|
|
|
|
WARMTH |
|
|
|
|
|
|
|
|
DURABILITY |
|
|
|
|
|
|
|
|
| Key Features | ||||||||
MATERIAL B-Prene - Sustainable material offering flexibility, buoyancy, and reduced environmental impact.
|
Yamamoto #40 & #39 Neoprene
|
B-Prene Yamamoto #39 Neoprene
|
B-Prene Yamamoto #39 Neoprene
|
Yamamoto #39 & Smoothskin Neoprene
|
Smoothskin Neoprene
|
Smoothskin Neoprene & Nylon Lined Neoprene
|
Smoothskin Neoprene & Nylon Lined Neoprene
|
Yamamoto #39 Neoprene
|
NEOPRENE |
5mm to 0.3mm
|
Mens = 5mm to 1mm
Womens = 3mm to 1.5mm |
Mens = 5mm to 1.5mm
Womens = 3mm to 1.5mm |
4mm to 1.5mm
|
4mm to 2mm
|
3mm to 2mm
|
3mm to 2mm |
5mm to 1.5mm
|
COATING |
SCS
|
SCS
|
HDS
|
HDS
|
Speedflo
|
Speedflo
|
Speedflo
|
SCS
|
WATERPROOF SEAMS |
Yes |
Yes |
Yes |
Yes |
Yes |
—
|
Yes |
Yes |
SHOULDER PANEL X-10 Extreme - One-piece construction for 360° stretch and unrestricted movement.
|
X-10 Extreme
|
X-10
|
X-10
|
—
|
—
|
—
|
—
|
—
|
SPEED CUFFS |
Pro
|
Pro
|
Pro
|
Slimeline
|
Slimline
|
—
|
—
|
Slimline
|
LASER CUT COLLAR |
Premium
|
Premium
|
Comfort
|
Comfort
|
—
|
—
|
—
|
—
|
B.R.E CHEST PANEL Body Rotation Enhancement (B.R.E)
|
Yes |
—
|
Yes |
—
|
—
|
—
|
No |
No |
YAMAMOTO AERODOME |
Yes
|
Yes
|
Men's Only
|
—
|
—
|
—
|
—
|
—
|
SENSORY CATCH PANEL Enhances feel and catch to improve stroke efficiency.
|
Yes |
Yes |
—
|
—
|
—
|
—
|
No |
No |
BIORUBBER |
Yes |
—
|
—
|
—
|
—
|
—
|
No |
No |
NBR BUOYANCY |
Yes |
—
|
—
|
—
|
—
|
—
|
No |
No |
LINING |
Alpha Titanium & Silk X
|
Silk X
|
—
|
—
|
—
|
—
|
—
|
Thermal Plush Lining
|
AS FEATURED IN
Foundation Wetsuits
Designed to support developing swimmers and first-time open water athletes.
- Balanced buoyancy for improved body position
- Durable construction
- Accessible flexibility
- Confidence-building support
Built to help you establish control and efficiency in open water.
Mid-Range Wetsuits
Engineered for swimmers looking to refine technique and reduce energy cost.
- Enhanced flexibility through the shoulders
- More precise buoyancy distribution
- Reduced drag coatings
- Greater hydrodynamic efficiency
Designed for athletes stepping up in distance or competitive focus.
Performance Wetsuits
Built for marginal gains and race-day precision.
- Premium Yamamoto neoprene
- Maximum flexibility
- Advanced buoyancy mapping
- Hydrodynamic coatings for reduced resistance
For athletes who demand maximum efficiency in the water.







