WINTER SERIES · 5°C - 15°C
Dive Deeper.
Stay Warmer.
Hold Longer.
A 9mm one-piece for winter dives, built around core warmth, controlled water entry, and enough stretch to move naturally.
Where Ordinary Suits Lose Warmth
Four failure points divers feel first: core heat loss, restricted movement, water flush, and worn-out contact zones.
Heat escapes through the core.
Thermal chest and back lining helps hold warmth where cold hits hardest.
Bulk kills movement.
A thick suit should still let shoulders, hips, and knees work cleanly.
Flush ruins bottom time.
A better zipper and sealed entry reduce the cold-water rush through the torso.
Knees wear first.
Rocky entries, ladders, and deck work punish the same panels every dive.
Construction You Can See.
Real material choices, shown up close.
9mm SCR Super-Stretch Neoprene
Premium limestone neoprene for warmth, flex, and durability.
Thermal Chest & Back Lining
Plush core panels trap heat where it matters most.
Reinforced Hip & Knee Panels
Durable overlays protect high-impact contact zones.
YKK Waterproof Zipper
A secure entry point built to limit flushing.
Closer Look
Real construction. Real materials. Real cold water.
YKK Waterproof Zipper with Internal Gusset
Reinforced Knee Panel for Rocky Entries
Brushed Orange Thermal Lining on Chest & Back
SCR Super-Stretch Neoprene for Full Range of Motion
Technical Specs
What's actually in the suit.
| Placeholder | Placeholder |
|---|---|
| Thickness | 9mm |
| Material | SCR Chloroprene Rubber (Double-sided) |
| Zipper | YKK Waterproof |
| Lining | Orange thermal fabric (Chest & Back) |
| Reinforcement | Hip & Knee abrasion-resistant panels |
| Water Temp Range | 5°C - 15°C |
| Season | Winter / Cold Water |
Find Your Size
True to fit. Size up if between sizes or layering with a hooded vest.
| Placeholder | Placeholder | Placeholder | Chest (cm) | Placeholder |
|---|---|---|---|---|
| S | 160 - 168 | 55 - 65 | 88 - 94 | 70 - 78 |
| M | 165 - 173 | 63 - 75 | 92 - 100 | 76 - 84 |
| L | 170 - 180 | 73 - 88 | 98 - 106 | 82 - 92 |
| XL | 178 - 186 | 85 - 100 | 104 - 112 | 90 - 100 |
| 2XL | 183 - 190 | 98 - 115 | 110 - 118 | 98 - 108 |
| 3XL | 188 - 196 | 110 - 130 | 116 - 126 | 106 - 118 |
Tip: The SCR super-stretch neoprene gives more give than standard 9mm wetsuits. If you're between sizes and don't plan to layer with thermal underwear, choose your regular size. If layering with a hooded vest or thermal undergarments, size up.
What Cold-Water Divers Say
From the people who actually use it.
PM
First 9mm that actually moves
I've owned three 9mm suits in the last decade. The OUZO is the first that doesn't feel like a 9mm on the surface - it's that stretchy. Three 40-minute dives in 9°C water and I was still warm at the chest. The knee reinforcement is a real upgrade over my last suit.
JW
Thermal lining is the difference
The thermal lining is the differentiator. My old suit had 9mm of neoprene but no insulation on the core - I was cold in 20 minutes. The OUZO brushed lining holds heat in a way the spec sheet can't quite describe. Worth every euro.
BL
YKK zipper is the real deal
YKK zipper is the real deal. Zero flush through the chest on my first dive. Sizing was true to the chart - I sized up one for layering and it was the right call. Cold water diving in the Atlantic in January - finally a suit that keeps up.
Common Questions
Answers before you ask.
What water temperature is the 9mm rated for?
5°C to 15°C. It's purpose-built for winter and cold-water diving - North Atlantic, North Sea, winter Mediterranean, kelp forests in low-visibility cold water. The brushed thermal core lining extends your bottom time significantly compared to standard 9mm suits without thermal panels.
How does it fit? Should I size up?
True to fit. If you're between sizes, or you plan to layer with a hooded thermal vest, size up one. The SCR super-stretch neoprene gives more give than standard 9mm - you'll notice the difference when donning and doffing.
Is this suitable for freediving and spearfishing?
Yes - 9mm is on the thick end for sustained surface work but works well for static cold-water freediving. For active freediving in milder water (above 18°C), consider a 5mm or 7mm instead.
How do I care for the suit?
Rinse with fresh water after every dive, dry in the shade, store flat or on a wide hanger. Avoid folding for long periods. Avoid contact with chlorine, sunscreen, and petroleum-based products on the neoprene.
What's covered under warranty?
Manufacturing defects in seams, zipper, and neoprene for 12 months from delivery. Normal wear-and-tear, abrasion damage from use, and UV degradation are not covered.
Do you ship outside the EU?
Yes - we ship worldwide. EU orders over €150 ship free. International shipping calculated at checkout.
Cold Water Doesn't Wait. Neither Should You.
OUZO 9mm Wetsuit · . Free EU shipping. 30-day returns.