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O'Neill 4/3+ Hyperfreak Fire Back Zip Wetsuit

sku# 229609
O'Neill - 4/3+ Hyperfreak Fire Back Zip WetsuitO'Neill - 4/3+ Hyperfreak Fire Back Zip Wetsuit
Model Info
The 4/3+ Hyperfreak Fire Back Zip Wetsuit is on sale!


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Product Info

The O'Neill 4/3+ Hyperfreak Fire Back Zip Wetsuit has a mission of providing extreme warmth, high performance, and reliable durability. Comprised of an all-new sustainable, soft, and toasty, heat-circulating TechnoButter 4 materials on the interior and an eco-friendly neoprene infused with recycled oyster shells and eco carbon, the 4/3+ Hyperfreak Back Zip Wetsuit is here to keep you cozy while also making for a hassle-free on/off experience thanks to O'Neill's patented Z.E.N. zip closure.

Product Details


Recycled Oyster Shells and Eco Carbon Black Infused Neoprene

Recycled Dope-Dyed Yarn Jersey

TechnoButter 4 Firewall (Front / Back / Thigh / Butt)

TechnoButter 4 (Shoulders / Shins / Calves)

TechnoButter 4X (Entry / Sleeves


Back ZipBack zip entry system with durable zipper provides easy entry and exit with the water resistant seal.

Patented Z.E.N. Zip Closure (Back Zip)

Anti-Flush Barrier (Z.E.N. Zip)


Triple Glued and Blindstitched Seam Construction (GBS)The neoprene is fully sealed with glue first, then blindstitched over the top. Blindstitching reduces seam bulk, adds durability but does not go all the way through the neoprene. In exchange, you have a durable, warm product that prevents flushing.

External Key Pocket with Loop

Tapered Cuffs with Segmented 3D Wrist and Ankle Seals

Aqua Alpha Solvent-Free Neoprene Lamination

Plus (+)0.5mm extra thickness for even more warmth.


  • Wetsuit Thickness: 4/3.5 mm
  • Wetsuit Fit: Back Zip
  • Material: Neoprene
  • Seam Sealing: Glued and Blindstitched Seams, Welded Seams
  • Manufacturer Item Number: 5516-A00
  • Warranty: 1 Year

Other Notes

O'Neill products can only be shipped within the United States and Canada



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