Wind Series - built for wind-powered sports
O'Neill Hyperfreak Wind 4/3+ Chest Zip Full belongs to the Wind Series, developed specifically for wind-powered sports. It uses lightweight and flexible TechnoButter 3 and TechnoButter 3X, while adding practical features for windsurfing and similar disciplines.
The liner fabrics contain at least 90% recycled fibers.
TechnoButter 3 and TechnoButter 3X
TechnoButter 3 is used throughout the body and legs, while the arms and shoulders feature the more flexible TechnoButter 3X.
This material layout supports unrestricted movement through the shoulders and arms, which is especially important when holding a boom, controlling a wing or performing other dynamic upper-body movements.
F.U.Z.E. Closure and anti-flush protection
The suit features F.U.Z.E. Closure, a chest-entry system designed to provide a secure upper-body closure.
It is supported by a 360 Degree Barrier with Drain Holes, which helps reduce water entry while allowing excess water to drain out.
Minimal Seam Design reduces the overall number of panel connections, supporting flexibility and helping limit potential water entry points.
Covert Drainage System and ankle straps
A key feature of the Wind version is the Covert Drainage System, designed to help release water that can collect in the lower legs.
The suit also features Ankle Straps, which help keep the leg openings in position and reduce roll-up during use.
Extra 0.5 mm of thickness
The 4/3+ designation means the wetsuit includes an additional 0.5 mm of neoprene for extra warmth.
This provides more thermal insulation than a standard 4/3 mm construction while maintaining the flexible feel of the Hyperfreak range.
Fully taped and sealed seams
The wetsuit uses Glued and Blind Stitched Seams combined with TB3X Fully Taped Seams.
The fully taped construction helps reinforce the panel connections and reduce water penetration through the seams.
Aqua Alpha lamination and knee protection
The neoprene is laminated using Aqua Alpha Solvent Free Neoprene Lamination, a solvent-free lamination process.
The knees are reinforced with Krypto Armor Knee Padz, increasing durability in one of the highest-wear areas of the wetsuit.
Features

- Wind Series - Construction developed specifically for windsurfing and other wind-powered sports
- TechnoButter 3 - Flexible neoprene used throughout the body and legs
- TechnoButter 3X - More flexible neoprene used in the arms and shoulders to support greater freedom of movement
- F.U.Z.E. Closure - Chest-entry closure system designed to help provide a secure fit and limit water entry
- Minimal Seam Design - Reduced seam count supporting flexibility and freedom of movement
- 360 Degree Barrier with Drain Holes - Barrier designed to reduce water entry with integrated drain holes for water release
- Covert Drainage System - Drainage system designed to help release water from the lower legs
- Ankle Straps - Straps designed to help keep the leg openings in position during use
- Plus 0.5 mm - Additional 0.5 mm of thickness for increased thermal insulation
- TB3X Fully Taped Seams - Fully taped seams designed to reinforce panel connections and help reduce water penetration
- Glued and Blind Stitched Seams - Glued and blind-stitched seams designed to reduce water penetration
- Aqua Alpha Solvent Free Neoprene Lamination - Solvent-free neoprene lamination technology
- Krypto Armor Knee Padz - Reinforced knee panels designed to increase durability in high-wear areas
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