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The O'Neill Hyperfreak 5/4+ Chest Zip is a cold-water winter wetsuit, made for the surfer who wants to stay warm without giving up mobility. The numbers mean 5 mm of neoprene over the body, where you lose the most heat, and 4 mm on the arms and legs for full flexibility, while the plus stands for O'Neill's extra-warm build. This version comes in Carbon/Darkslate.
The suit is made from TechnoButter neoprene, which is lighter and absorbs less water than standard neoprene, and the seams are glued and taped on the inside to keep water out. The chest-zip entry with the F.U.Z.E. system makes it easy to get in and out and reduces how much cold water seeps in at the neck.
- 5/4+ mm: 5 mm over the body for warmth, 4 mm on arms and legs for mobility.
- TechnoButter neoprene: lighter and less water-absorbing than standard neoprene.
- Glued and internally taped seams that keep cold water out.
- Chest-zip entry with the F.U.Z.E. system for easy on and off and less water intake.
- Krypto Knee Padz for durable knees. Non-hooded.
The glued and taped seams keep the suit drier inside for longer, so you can stay in the water when it's cold, and the anatomical fit means the neoprene doesn't restrict you as you paddle out.
If you're surfing or sailing on into autumn and winter and want serious warmth with full freedom of movement, the Hyperfreak 5/4+ Chest Zip is a reliable cold-water suit.
O'Neill Wetsuits, Men
O'Neill · Men
Sizes are a guide. The measurements come from the manufacturer and can vary between models.
You have 14 days to change your mind, counted from the day you receive your order. You do not need to give a reason.
- Tell us first
- Send us an email at info@oneopensky.dk within the 14 days. Refusing the parcel at the door does not count as a cancellation.
- Send the item back
- Within 14 days of telling us, to One Open Sky, Golfvej 10, 7400 Herning, Denmark. Mark the parcel Web Return.
- Return shipping
- Ordinary parcels come with a return label. Sending the item back costs the same as the delivery.
- Condition
- Try the item the way you would in a shop. If it has been used beyond that, we may reduce the amount we refund. Please use the original packaging.
- Your money back
- Within 14 days of your message, to the same payment method you used. We may wait until the item is back with us.
- Not covered
- Items made or adjusted for you, for example bindings mounted on your skis.
- Return in store
- You can also hand the item in at our shops in Herning or Copenhagen. The money goes back the same way you paid.