GUL Code Zero: We’ve Tested the New Range.
We’ve used GUL Code Zero for years. We’ve tested the previous generation, raced in it, spent long days on the water in it and recommended it to plenty of sailors. So when GUL told us the Code Zero range was getting a major overhaul, we were keen to see what had changed.
Having now spent time testing the new collection, our biggest takeaway is that this isn't simply an updated wetsuit range.
GUL has developed Code Zero into a complete sailing system.
From 1mm and 3mm wetsuit layers to hiking protection, spray tops and accessories, the new Code Zero collection is designed to cover much more of what you actually need for a day on the water.
And perhaps best of all, GUL has managed to do it while keeping the range remarkably accessible on price.
We've Used the Previous Code Zero. The New One Is Better
The previous Code Zero range was already a firm favourite with us.
It was practical, comfortable, hard-wearing and, crucially, offered a lot of performance for the money. It was one of those ranges that we could confidently recommend to sailors who wanted proper technical kit without stepping into the highest price brackets.
The new collection builds on that.
There are improvements across the materials, construction, fit and protection, with NAECO FSC® and PEFC® certified natural rubber foam now featuring across many of the new wetsuit and hiking products. The range also introduces or develops technologies including REVOFIT 3D Pattern Technology, Rhombus|Flex, FX, Flextex and Thermospan.
Having actually worn the kit, the difference isn't just something you'll see on a product specification sheet.
It feels like a more refined version of a range we already really liked.
So, What's New With GUL Code Zero?
The biggest change across the new Code Zero range is the development of the materials and construction.
GUL has introduced NAECO FSC® and PEFC® certified natural rubber foam into several of the latest Code Zero products, including the 1mm and 3mm suits. Alongside this, the range uses technologies such as REVOFIT 3D Pattern Technology, Rhombus|Flex stretch panels, Flextex durability panels and specialist thermal linings to balance flexibility, protection and comfort.
For us, that's what makes the new range particularly interesting. It's not simply about making a wetsuit thicker or adding more features. It's about making the suit work better as a whole.
And that's something you notice when you're moving around a boat.
REVOFIT: A Better Fit for Moving on the Water
One of the technologies carried across the new Code Zero range is REVOFIT 3D Pattern Technology.
Rather than treating the wetsuit as a flat collection of panels, the construction is designed around the shape and movement of the body.
For sailors, that matters.
You're constantly moving, hiking out, trimming, tacking, gybing, climbing in and out of the boat and changing position. A wetsuit that restricts movement can quickly become uncomfortable, especially over a long day on the water.
The Code Zero's 3D patterning helps create a more ergonomic fit, while the stretch materials allow the suit to move with you rather than against you.
Having used the previous Code Zero ourselves, this is one of the areas where the new generation feels refined.
Flexibility Without Sacrificing Durability
One of the things we've always liked about Code Zero is that it doesn't feel like GUL has had to choose between flexibility and durability.
The new range continues that approach.
The Code Zero uses highly flexible materials such as Rhombus|Flex, while areas that experience more wear are reinforced with technologies such as Flextex and Powertex4. On selected products, GUL has also introduced S-Shield and Hex.Flex protection around the shin and knee areas.
This is commonly useful for dinghy sailors, where your knees, shins and seat are constantly exposed to friction and contact with the boat.
The result is a wetsuit that feels flexible where you need movement, while still being built to take the knocks that come with regular sailing.
Keeping Warm Without Feeling Restricted
The Code Zero collection covers different conditions and uses, from lightweight 1mm suits through to warmer 3mm options.
The 3mm Code Zero X Thermotop, for example, combines NAECO natural rubber foam with a Thermospan thermal lining, blindstitched seams and internal G-Tape seam protection. The result is a combination of warmth, stretch and protection designed for colder conditions and longer sessions.
The 1mm Code Zero options take a different approach, focusing on keeping weight and bulk down while maintaining flexibility and protection. The Micro2Flex lining is designed to provide temperature regulation and next-to-skin comfort, while the lightweight construction makes these suits useful for warmer-weather sailing and high-activity sessions.
This is one of the things we really like about the updated range: there isn't simply one Code Zero wetsuit.
There's a genuine system of products that allows you to choose the right level of protection for how and when you sail.
Some Clever Details Make a Big Difference
It's also the smaller details that make the new Code Zero range stand out.
Features such as the P-Eazy fly relief system make getting through a long day on the water considerably more practical, while the S-Shield protection, articulated knee construction and drainage systems are designed around the realities of sailing rather than simply adding features for the sake of it.
There are also useful additions such as low-profile side pockets on selected suits and adjustable straps on the long-john styles.
They're the sort of details you might not notice immediately when looking at the wetsuit on a hanger.
Spend a few hours sailing in it, though, and they start to make a lot more sense.
A full Code Zero Range
One of the biggest strengths of the new Code Zero collection is the choice. Whether you need lightweight protection, extra warmth, dedicated hiking gear or protection from wind and spray, there's a combination to suit how you sail.
1mm Thermo Tops
Lightweight and flexible, the 1mm Thermo Tops are ideal for warmer days or as part of a layered setup. Made with GUL's NAECO natural rubber foam, they provide a little extra warmth and protection without restricting movement.
1mm Long Johns & Long Janes
A versatile option for a range of conditions, offering additional coverage through the legs and torso while keeping things lightweight and flexible. Available in men's, women's and junior options.
3mm Thermo Tops
When conditions get cooler, the 3mm Thermo Tops provide a significant step up in warmth. With thermal lining and a flexible construction, they're designed to keep you comfortable through longer sessions on the water.
3mm Long Johns & Long Janes
The go-to option when you need more coverage and insulation. Combining 3mm neoprene with GUL's NAECO natural rubber technology, these are built for colder conditions while still allowing plenty of freedom of movement.
3mm Trousers & Shorts
Perfect for building a more flexible layering system. The trousers offer additional coverage and warmth, while the shorts provide protection through the core and upper legs without the bulk of a full wetsuit.
Code Zero Hikers
For serious dinghy sailors, these are designed specifically around the demands of hiking. Combining flexible materials with additional support and protection in key areas, they're built for sailors who spend long periods hiking hard.
Code Zero Hike Pants
Another dedicated hiking option, providing additional protection and support where it's needed most. They're designed to work as part of a wider Code Zero layering system.
Code Zero ReCore Spray Tops
When the wind picks up or the rain arrives, the ReCore 3L Spray Tops provide an outer layer of protection over your existing kit. A great addition to any sailing setup, particularly when conditions are unpredictable.
Code Zero BoltDry Race Cap
A lightweight, practical sailing cap designed for race days and training sessions. It can be folded away easily when it's not needed, making it an easy addition to your sailing bag.
The Complete Code Zero System
Put it all together and you have a collection that can be adapted to almost any day on the water.
Lightweight base layers for summer. Warmer 3mm options for colder conditions. Dedicated hiking protection for racing. Spray protection when the weather turns.
Rather than buying one piece of kit and hoping it covers every situation, Code Zero gives you the flexibility to build your setup around the conditions and the way you sail.
What About the Sustainability?
The introduction of NAECO FSC® and PEFC® certified natural rubber foam is another significant step forward for the new Code Zero range.
For us, it's good to see GUL continuing to develop the materials used in the range while maintaining the performance characteristics that sailors actually need.
The new NAECO products combine natural rubber foam with technical fabrics and performance-focused construction, rather than making sustainability the sole selling point.
The priority is still a good wetsuit that performs, with better material choices built into the product.
So, what’s the verdict?
Is the new Code Zero range worth it? Absolutely.
Having used the previous generation, we think the new Code Zero is a really worthwhile step forward.
The fit feels considered, the flexibility is excellent, the protection is where you need it and the range now gives sailors more options depending on conditions and how they spend their time on the water.
But perhaps the biggest thing for us is the price.
GUL has managed to pack a serious amount of technology into the Code Zero range without pushing it into an inaccessible price bracket. With current Code Zero products ranging from lightweight 1mm options through to the more technical 3mm NAECO suits, there's a strong choice for sailors looking for performance without spending a fortune.
That's what makes Code Zero such a compelling range for us at Wetsuit Outlet.
It's not about buying the most expensive wetsuit you can find.
It's about getting the right technology, the right fit and the right level of protection for the money.
And after putting the new Code Zero through its paces, we think GUL has got that balance very, very right.
Explore the New GUL Code Zero Range
Whether you're racing dinghies, cruising, foiling, training or simply spending long days on the water, there's now a Code Zero option designed around the way you sail.
The new GUL Code Zero range is available now at Wetsuit Outlet.