O'Neill womens Hyperfreak 4/3mm Chest Zip Steamer is part of O'Neill's continuing range of high-performance wetsuits. The Hyperfreak series is one of the most flexible types of surfing wetsuits we've ever laid hands on. The insanely stretchy TB3-X Neoprene offers the greatest elasticity of any technical neoprene thanks to the Envy Foam core rubber which effectively insulates by maximising cell volume without increasing the chance of cell-wall failure (cell wall failure basically turns your wetsuit from foam into a sponge). Wetsuit 'rubber' is actually a closed-cell foam but you can get the rundown on our .

The Hyperfreak range of is their highest performing range of wetsuits and in true O'Neill fashion has pushed performance where no one else has gone before. In the age of 'green' wetsuits, it's easy to get bogged down in misinformation but one thing we know for sure is every dollar spent on the O'Neill womens Hyperfreak 4/3mm Chest Zip Steamer results in the utmost performance.

We'd recommend a 4/3mm thickness wetsuit for winter conditions south of Sydney however, you might opt to go a little thinner in NSW and southeast Queensland. Check out the

To get the most out of your O'Neill womens Hyperfreak 4/3mm Fuze Zip Steamer we recommend washing it with & reading our .

O'Neill womens Hyperfreak 4/3mm Chest Zip Steamer Features:

• TBX-3 Neoprene: Arguably the stretchiest neoprene available, we've felt a lot of wetsuits over the years but nothing has felt as supple as the TBX-3, so much so that we audibly gasped when inspecting it... Did you know that the 'rubber' inside a wet suit is actually foam? It's important to remember that stretch factor is not dependant on a single aspect of the suit but the combination of the core foam, the linings and the seams - O'neill tout 220% combined elasticity without permanent deformation. Get learned at our .
• Glued & Blind-Stitched Seams: GBS seams use a hooked needle to ensure no pin-holes are made during the sewing stages, as a result, the only passage for water is the gap between the two panels but O'Neill plug the entire suit with an elastic glue that not only stops all water flow but barely affects the overall stretch of the suit. It's not the most expensive but it's certainly one of the best seams around. Intrigued? Check out our .
• TB3X Fully Taped Seams: Taped seams reinforce the GBS stitching to prevent tearing and their water sealing capabilities. TB3X taping is super flexible too - so it won't hinder your flexible technobutter neoprene.
  
• Chest Zip Entry: A no-brainer for any performance wetsuit as it's warmer and dryer but drastically increases the entire suit's stretch factor. Read our exposé vlog on .
• Uninterrupted Torso Panels: Wetsuit stretch is a % function. That is to say: if a neoprene has 200% stretch then 1m can stretch to 2.2m without permanent deformation. If you chuck a seam in the middle of that panel, it won't stretch to 2.2m because seams don't stretch as much as neoprene. Therefore, by removing almost all the seams from your front and back means the greatest possible stretch!
• Double Super Seal Collar: Two layers of neoprene in smooth-skin neoprene lining creates an effective seal against the skin around the fully adjustable collar.
• Strategic Seam Placement: O'Neill has minimised the total number of seams on the Hyperfreak Fuze springsuit which in turn creates a more flexible suit. The same notion as the uninterrupted torso panels!
• Aqua Alpha Solvent Free Lamination
• Drainage Holes