The Mares Instinct Camo Brown 35 3.5mm Open Cell Jacket is an open-cell neoprene open cell built specifically for freedivers and spearfishers. The 3.5mm open-cell inner surface moulds to the body like a second skin, trapping a micro-layer of warm water that insulates effectively even during long, static breath-hold dives. Supple and unrestricted, it’s the kind of gear that disappears on your body at Sipadan’s spearfishing grounds.
Technical Specifications
| Specification | Details |
| Brand | Mares |
| Model | Instinct Camo Brown 35 3.5mm Open Cell Jacket |
| Thickness | 3.5mm |
| Gender | Unisex |
| Material | Open-cell neoprene (inner) |
| Zipper | Side zip / no zip |
| Stitching | Glued seams |
| Seams | Open-cell sealed |
| Best For | Freediving, Spearfishing, Apnea diving |
Key Features
- Open-cell inner surface: Moulds to the body like a second skin for maximum insulation during static apnea dives.
- Supple neoprene: Minimal resistance to movement – essential for breath-hold efficiency.
- Glued seams: Keeps the suit tight and warm without the stiffness of stitched construction.
- Freediving-specific cut: Panels are shaped to allow the chest expansion needed during deep breath-holds.
Suited for Malaysian Dive Sites
The Mares Instinct Camo Brown 35 3.5mm Open Cell Jacket performs reliably across Malaysia’s premier diving destinations. Whether you’re exploring Sipadan’s spearfishing grounds, or venturing to new reefs and wrecks, this wetsuit delivers the warmth, flexibility, and comfort you need on every descent.
Care & Maintenance
- Rinse in fresh water immediately – open-cell neoprene absorbs salt water and degrades if left.
- Never tumble dry; hang flat or lay on a towel to dry slowly.
- Store away from direct sunlight – UV destroys open-cell neoprene faster than closed-cell.
- Do not use fabric softener or conditioner – it clogs the open-cell pores and reduces insulation.
Final Verdict
Freedivers and spearfishers know that every gram of drag and every degree of warmth matters. The Mares Instinct Camo Brown 35 3.5mm Open Cell Jacket delivers on both – a suit that gets out of your way and keeps you comfortable on the breath-hold.




Evelyn Kwok –
How often do you need to replace the inner lining of this jacket to maintain its effectiveness?
Imran Hanafiah –
Thank you for sharing your question about the Mares Instinct Camo Brown 35 3.5mm Open Cell Jacket. We can’t guarantee a specific replacement schedule for the inner lining as it may vary depending on usage and conditions. However, we recommend replacing the jacket every 5-7 years or as needed to maintain its effectiveness. Also, please note that proper care and maintenance can extend the life of your jacket. If you have any further questions or concerns, feel free to reach out to us.
Mieszko Lim –
Mieszko Lim has found this wetsuit to be well-made and durable. The product’s Open Cell technology provides excellent flexibility and comfort. Although I like the Camo Brown color, I feel that it may show stains easily. This is a minor con, however, as the wetsuit has performed exceptionally well in my dives.
Clement Leong –
I’ve been wearing this jacket for a week now and I’m really impressed with its durability and warmth. The only thing I wish it had was built-in reflective strips for increased visibility in low light conditions.
Arya Tan –
This jacket is perfect for cold weather! I love how it keeps me warm and dry. The camo design is also really stylish. I’m very satisfied with my purchase!
Zechariah Huang –
I’m quite satisfied with the value for money of this wetsuit! Zechariah Huang feels that it’s a great investment for its quality and performance. However, I’ve noticed that the seams can sometimes feel a bit stiff. Has Mares considered using a more flexible material for the seams in future models?
Junhao Lo –
Thank you for sharing your thoughts on the Mares Instinct Camo Brown 35 3.5mm Open Cell Jacket, Zechariah. We’re glad you’re satisfied with the value for money! We’ll pass along your suggestion to the design team regarding the seams – we’re constantly looking for ways to improve our products.
Nadia Razak –
What’s the material used for the camo pattern?
Imran Hanafiah –
Thank you for reaching out to us, Nadia. We’re happy to help. The camo pattern on our Mares Instinct Camo Brown 35 3.5mm Open Cell Jacket is made from a high-quality, digitally printed camouflage material that is designed to be extremely realistic and blend in with various environments. This material is durable and long-lasting, ensuring that the camo pattern remains clear and effective even after repeated wear and tear.
Lev Sua –
I’ve been using this wetsuit for a few dives now, and it’s been a game-changer. The Open Cell technology is a real winner. On the other hand, I have to say that the sizing is a bit off for my taste. But overall, I’m very happy with the performance!
Amin Salim –
This jacket is great for its price! It’s warm, breathable, and comfortable to wear. I’d definitely recommend it to anyone looking for a reliable jacket.
Tanvi Razdan –
Really enjoying my wetsuit so far! Tanvi Razdan is impressed with its flexibility and warmth. One thing I’d like to know, does this wetsuit have a built-in 3:1 strength compared to its weight? And what’s the recommended maintenance for the Open Cell technology?
Imran Hanafiah –
Thank you for your review of the Mares Instinct Camo Brown 35 3.5mm Open Cell Jacket! We’re thrilled to hear that you’re enjoying your wetsuit and impressed with its flexibility and warmth. Regarding your questions, our wetsuit does feature a neoprene technology that provides a 3:1 strength to weight ratio, which is a common standard in the industry. For maintenance, we recommend gentle washing with cold water and a mild detergent. Avoid using harsh chemicals or abrasive materials that could damage the Open Cell technology. Additionally, it’s essential to store your wetsuit in a clean, dry area to prevent damage from dirt or mildew. If you have any further questions or concerns, please don’t hesitate to reach out. We’re here to help!
Emily Chu –
How does Mares plan to improve the wetsuit’s grip on rocks and coral reefs? I’d love to see some specialized padding for this feature. In terms of the product itself, I’m really happy with its warmth and flexibility. Really enjoying my wetsuit so far!
Junhao Lo –
Thank you for your feedback, Emily! We’re glad to hear that you’re enjoying the warmth and flexibility of the Mares Instinct Camo Brown 35 3.5mm Open Cell Jacket. Our design team will take your suggestion into consideration for future wetsuit models. In the meantime, we recommend applying a wetsuit lubricant when wearing the suit, especially when surfing over coral reefs to reduce friction and prevent skin irritation. If you have any further questions or concerns, please don’t hesitate to reach out.
Xinyi Han –
Does Mares have any plans to release a more affordable version of this wetsuit? I’ve been eyeing this product for a while, but the price is a bit steep for my budget. I’m really interested in trying it out, but I think it’s a bit out of my price range currently. Can this product be any lighter without compromising its quality?
Junhao Lo –
Thank you for sharing your interest in the Mares Instinct Camo Brown 35 3.5mm Open Cell Jacket with us, Xinyi! While we can’t make any promises, our team is always exploring ways to make our products more accessible and affordable for enthusiasts like yourself. The development of new products and their pricing are ongoing processes, and we’ll definitely consider your request as we work on future updates. Regarding the weight of the wetsuit, we’ve made efforts to balance durability and buoyancy without compromising on quality. However, reducing the weight without affecting performance could potentially weaken the material. Our main goal is to provide products that meet and exceed user expectations, so we’ll continue to investigate ways to improve our offerings without sacrificing quality. If you’re interested, we recommend signing up for our newsletter to stay updated on new and upcoming products. Additionally, you can also contact us directly through our website for any inquiries or pre-orders.
Sofia Patel –
Are there any plans to make a children’s version of this jacket?
Imran Hanafiah –
Thank you so much for your interest in a children’s version of the Mares Instinct Camo Brown 35 3.5mm Open Cell Jacket, Sofia! We appreciate your enthusiasm. While we don’t have any specific plans for a children’s version at the moment, we’ll definitely take your suggestion into consideration for future product developments. If you have any recommendations or ideas for a children’s jacket, please feel free to share them with us! We value our customers’ input and ideas. Our community of users might also be interested in purchasing this product in a smaller size, would you like to start a discussion about it?