Coche un accessoire : il part au panier avec ce produit.
Sheet updated September 2026
The O'Neill Hyperfreak 5/4+ Chest Zip women's fullsuit is O'Neill's lightweight winter wetsuit. It features recycled TechnoButter 3 neoprene and an extra half-millimeter of thickness for added warmth. O'Neill designed the Hyperfreak series to be their lightest and most flexible wetsuits. The body and legs are crafted from recycled TechnoButter 3, while the arms and shoulders use TechnoButter 3X. The seams are glued, blind-stitched, and fully taped with TB3X. The “+” in the name signifies an additional 0.5 mm of neoprene compared to the classic 5/4. This fullsuit includes a F.U.Z.E. chest zip and Krypto Armor knees. It's rated for water temperatures from 4 to 11 degrees Celsius. Available in four colors and eleven sizes, including S and T cuts.
KEY INFORMATION
O'NEILL HYPERFREAK 5/4+ CHEST ZIP WOMEN - 5/4 mm winter fullsuit
What we like
- Recycled TechnoButter 3: This is O'Neill's most flexible neoprene. Its linings contain at least 90% recycled fibers, according to the brand. You get the warmth of a 5/4 without feeling like you're wearing armor.
- Lighter, less water absorbed: O'Neill's TechnoButter is 20% lighter and 30% less absorbent than their other neoprenes. This means your wetsuit dries quickly and won't feel heavy at the end of your session.
- An extra half-millimeter: The “+” in 5/4+ means 0.5 mm of added warmth. This extra thickness doesn't change the cut. It's what sets it apart from the classic Hyperfreak 5/4.
- Fully taped TB3X seams: These seams are glued, blind-stitched, and then taped along their entire length on the inside. This ensures the seam never becomes a point of water entry.
- F.U.Z.E. chest zip: Entry through the chest means less water gets in. It also keeps the back entirely neoprene for maximum flexibility.
- 360-degree barrier with drains: The barrier around the zip fully encircles the torso. It drains through holes, so any water that gets past the zip exits instead of staying in your wetsuit.
- Krypto Armor knees: These are O'Neill's reinforced knee pads. They protect against board impacts and abrasion when walking on sand.
Available sizes
Color
Black, Shade / Navy, Dark Orion, Black / Faded Denim
Included / Not included
✓ Included: 1 O'Neill Hyperfreak 5/4+ Chest Zip women's wetsuit
✗ Not included: Hood, Boots, Gloves
DETAILED DESCRIPTION
What makes an Hyperfreak wetsuit stand out
O'Neill's Hyperfreak series prioritizes lightness and flexibility. It sits between the entry-level Epic and the Psycho Tech, which is designed for maximum warmth. This women's version features recycled TechnoButter 3 on the body and legs. TechnoButter 3X is used on the arms and shoulders, where unrestricted movement is crucial. The “+” indicates an additional 0.5 mm compared to the standard 5/4, providing extra warmth without the stiffness of a 6/4.
The F.U.Z.E. chest zip and 360 barrier
F.U.Z.E. stands for Front Upper Zip Entry, O'Neill's proprietary chest zip system. The chest opening reduces the area where water can enter, keeping your back flexible. Behind the zip, a barrier fully encircles the torso and drains through holes. Any water that gets past the zip exits instead of flowing down into your wetsuit.
Seams and Construction
This wetsuit features a reduced seam design, with glued, blind-stitched, and fully TB3X taped seams on the inside. It also uses Aqua Alpha solvent-free lamination and Krypto Armor knees. The full-length seam tape enhances watertightness and, more importantly, improves durability over time, especially in areas where seams typically fail.
Colorways and sizes
Four colorways are available: solid black, Shade / Navy, Dark Orion, and Black / Faded Denim. There are eleven sizes, from 2 to 12, with a T (tall) cut for size 6, and S (short) and T cuts for sizes 8 and 10. The O'Neill size guide higher up on the page provides height and weight measurements for each cut. It also provides chest and waist measurements.
SIZE GUIDE
| Size | Height (cm) | Weight (kg) | Chest (cm) | Waist size (cm) |
|---|---|---|---|---|
| 2 | 155-160 | 41-48 | 76-81 | 62-67 |
| 4 | 160-165 | 45-52 | 77-83 | 64-69 |
| 6 | 163-168 | 50-57 | 80-85 | 66-71 |
| 6T | 166-171 | 52-59 | 80-85 | 66-71 |
| 8S | 161-166 | 52-59 | 83-88 | 69-74 |
| 8 | 165-170 | 54-61 | 83-88 | 69-74 |
| 8T | 169-174 | 57-64 | 83-88 | 69-74 |
| 10S | 164-169 | 57-66 | 86-91 | 74-77 |
| 10 | 168-173 | 59-68 | 86-91 | 74-77 |
| 10T | 171-177 | 61-70 | 86-91 | 74-77 |
| 12 | 170-175 | 64-73 | 90-95 | 77-81 |
TECHNICAL SPECIFICATIONS
| Specifications | |
|---|---|
| Type | Women's fullsuit, long sleeves and legs |
| Thickness | 5 mm on the torso, 4 mm on the limbs, plus 0.5 mm |
| Admission | F.U.Z.E. chest zip, 360-degree barrier with drains |
| Neoprene | Recycled TechnoButter 3 (body and legs), recycled TechnoButter 3X (arms and shoulders) |
| Seams | Glued, blind-stitched, and fully TB3X taped |
| Lamination | Aqua Alpha, solvent-free |
| Knees | Krypto Armor |
| Advertised water temperature | 4 to 11 degrees |
| Series | Hyperfreak |
| Sizes | Sizes 2 to 12, with S and T cuts available for sizes 6, 8, and 10. |
| O'Neill reference | 5374 |
FAQ - O'Neill Hyperfreak 5/4+ Chest Zip Women's Fullsuit
This is for the woman who rides in winter and wants a warm wetsuit without the stiffness of a 6/4. You feel the TechnoButter 3 as soon as you put it on. For two or three winter sessions per year, an Epic is enough. For a full season, the Hyperfreak is justified.
O'Neill rates it for 4 to 11 degrees Celsius. On the Atlantic coast, this covers the entire cold season. Below 8 degrees, you will need a hood and boots. You will also need gloves. These are not included.
The O'Neill size guide higher on the page provides height and weight measurements, as well as chest and waist measurements, for each cut. S and T cuts keep the base size's torso with shorter or longer limbs. A wetsuit should be tight when dry. If in doubt, call us before ordering.
Rinse it with fresh water after each session, inside out. Dry it in the shade on a wide hanger. No sun, no radiator, and no closed bag with a wet wetsuit inside. Occasional washing with O'Neill Wetsuit Cleaner removes salt and odors.
We are a Kite, wing, and Surf shop in Pornichet, on the Atlantic coast. We ride all year in water that drops below ten degrees in February. We wear winter wetsuits before selling them. If you have a question about sizing or cut, call us or visit the shop.
▶ Need advice?
GlissEvolution, 2c avenue du Gulfstream, 44380 Pornichet (Loire-Atlantique)
09 62 64 74 77 | WhatsApp: 07 83 28 39 94, Tuesday to Saturday, 10am-1pm / 3pm-7pm
Test center available by appointment
To go further
Customer reviews
Loading reviews...
