ONeill Hyperfreak Fire 5/4+ Chest Zip Wetsuit Carbon Navy

• Thickness – 5/4+ mm
• Neoprene – TechnoButter 4 Firewall (Front/Back/Thigh/Butt)
• Lining – TB4 Firewall with recycled graphene fibres that absorb & return body heat
• Panels – TechnoButter 4 (Shoulder/Shin/Calf) for stretch & heat retention
• Entry/Sleeves – TechnoButter 4X for maximum stretch & flexibility
• Seams – Exterior Fluid Seam Weld (urethane liquid seal over glued & blindstitched seams)
• Closure – F.U.Z.E. Chest Zip (free-floating zip panel with 360° barrier & drainholes)
• Anti-Flush – Internal Anti-Flush barrier reduces water entry
• Cuffs – Tapered cuffs with segmented 3D wrist & ankle seals
• Lamination – Aqua Alpha Solvent-Free Neoprene Lamination
• Warranty – 1 year workmanship and materials

The 2026 O’Neill Hyperfreak Fire 5/4+ Men’s Wetsuit is O’Neill’s flagship cold-water performance suit, combining top-end warmth with unrivalled flexibility. The 5/4+ build adds an extra 0.5 mm in the core compared to a standard 5/4, giving extra insulation for brutal winter sessions without making the suit feel heavy or restrictive.

At its heart is TechnoButter 4 Firewall, packed with recycled graphene fibres across the chest, back, thighs and seat. As you move, these fibres capture body heat and reflect it back, recycling warmth through your core. In the shoulders, shins and calves, TechnoButter 4 balances stretch with insulation, while TechnoButter 4X in the entry system and sleeves maximises paddle freedom and durability in high-motion zones.

Seams are locked down with Exterior Fluid Seam Weld— a liquid urethane seal layered over glued and blindstitched joins. This blocks out cold water without adding stiffness. The F.U.Z.E. chest zip system with 360 barrier, drainholes and anti-flush panel further reduces leaks while staying easy to get in and out of. Tapered cuffs with segmented 3D wrist and ankle seals round out the watertight design, and Aqua Alpha solvent-free lamination keeps the eco-credentials strong.

This wetsuit is built for 4–10C waters — prime winter territory for UK and Northern Europe. Blacked-out styling with subtle detailing makes it sharp-looking, while inside it’s all about performance and comfort for surfers who refuse to quit when the temperature drops.

For men who want one of the warmest and most flexible wetsuits available, the Hyperfreak Fire 5/4+ is hard to beat. The extra half millimetre gives a genuine bump in warmth over a standard 5/4, yet the advanced TB4 and TB4X materials mean it still feels light and stretchy. The graphene-enhanced Firewall lining really shines in long sessions, as the suit stays warm even after repeated duck-dives.

Compared with bulkier 6/4 hooded suits, the Hyperfreak Fire feels much less restrictive, but it still punches above its weight in warmth. The F.U.Z.E. chest zip is intuitive, reliable, and seals tight, while the fluid seam welds keep flushing to a minimum. Expect a snug, performance fit that breaks in after a couple of surfs.

Yes, it’s a premium wetsuit, but if you’re serious about pushing your surfing through winter in comfort, this is a standout. Flexible, eco-conscious, incredibly warm and long-lasting — the Hyperfreak Fire continues to set the bar for cold-water performance.