The ultimate benchmark in winter warmth, stretch, and flexibility
The latest evolution in O'Neill's legendary lineup, the Hyperfreak Fire 5/4mm Chest Zip redefines performance standards for cold-water surfing. Engineered for surfers who refuse to compromise between butter-soft flexibility and maximum thermal insulation, it pushes the boundaries of comfort so you can clock long winter sessions without any paddling resistance.
This version features revolutionary Technobutter 4 (TB4) neoprene, pairing ultra-light TB4X technology across the shoulders for effortless paddle power with TB4 Firewall thermal lining on the chest and back to trap body heat. Built with Fluid Seam Weld construction (external liquid-taped seams), it creates a 100% watertight seal against icy ocean flushes.
Technical Features & Comfort
Technobutter 4 & TB4X Neoprene: The softest, lightest, and most hydrophobic neoprene on the market, offering unrivaled stretch across the shoulders and arms.
TB4 Firewall Thermal Lining: Internal heat-retaining fleece lining on the core and back that traps warm air and repels moisture.
Fluid Seam Weld Construction: Triple glued & blind-stitched seams sealed with an exterior liquid silicone weld for total waterproofness and maximum seam durability.
F.U.Z.E. Chest Zip Entry: O'Neill’s exclusive Front Upper Zip Entry featuring a free-floating panel and integrated drain holes to prevent water buildup.
Double Superseal Neck & Plasma Seals: Hermetic sealing at the neck, wrists, and ankles (Plasma wrist seals) to eliminate flushing during heavy duck dives.
Key Highlights
Unmatched Second-Skin Feel: The incredible stretch of TB4X makes a 5/4mm feel as light and flexible as a mid-season suit.
Maximum Watertight Durability: Exterior liquid seam welding permanently blocks water entry while maintaining overall seam stretch.
Rapid Drying Time: The hydrophobic TB4 Firewall lining sheds water instantly and dries fast between back-to-back sessions.
Specifications
Model: Hyperfreak Fire 5/4mm Chest Zip
Brand: O'Neill
Thickness: 5/4 mm (5mm core, 4mm limbs)
Entry System: F.U.Z.E. Chest Zip (Front Zip)
Recommended Water Temp: 8°C – 13°C / 46°F – 55°F
Colorway: Black / Black
Materials: Technobutter 4 / TB4X / TB4 Firewall Neoprene
The Breizh Rider Team's Advice
"The Hyperfreak Fire is hands down the gold standard for winter stretch! Wearing a 5/4mm during Brittany's coldest months can usually feel restrictive, but the TB4X neoprene in the shoulders is mind-blowing—it honestly feels like you're paddling in a 3/2mm. Combined with the liquid-sealed seams that don't let a drop of cold water in, it's the ultimate winter armor for hitting La Torche or the Crozon Peninsula!"
Shipped from Brittany: Stock available at our shop in Douarnenez. Carefully packed and fast shipping throughout France and Europe.