Sheet updated September 2026
The O'Neill Blueprint Windfreak 5/4+ Chest Zip wetsuit is designed for wind sports, and it features a drainage system at the bottom of the legs. O'Neill calls the Blueprint its most durable wetsuit, and the Windfreak is the upgraded version. It adds the Covert Drain System at the bottom of the legs. This system lets water drain out instead of pooling in your calves. It features TB4X neoprene, glued seams, blind-stitched, and fully taped seams, and a F.U.Z.E. chest zip. This wetsuit is rated for water temperatures from 4 to 11 degrees. This is a unique item from the shop, available in size MT.
KEY INFORMATION
O'NEILL BLUEPRINT WINDFREAK 5/4+ CHEST ZIP - Men's fullsuit for Kite and Wing
What we like
- Covert Drain System: Drains at the bottom of the legs let water escape. This is O'Neill's solution to prevent your legs from filling with water after a fall.
- Made for wind: O'Neill explicitly designed this fullsuit for wind sports enthusiasts. This specialized focus is rare in the industry.
- Fully taped seams: Glued, blind-stitched, then taped along their entire length. This three-step process, instead of just one, significantly enhances watertightness and durability.
- TB4X Neoprene: This is O'Neill's latest generation neoprene, exclusively used in the Blueprint range.
- F.U.Z.E. Chest Zip: Entry through the chest minimizes water entry and keeps your back flexible.
- Rated 4 to 11 Degrees Celsius: O'Neill provides this water temperature range, making it ideal for the entire Atlantic winter season.
- The brand's most durable: The Blueprint series is specifically designed for durability, utilizing recycled materials.
Available sizes
Included / Not included
✔️ Included: 1 O'Neill Blueprint Windfreak 5/4+ Chest Zip fullsuit
✗ Not included: Hood, Boots, Gloves
DETAILED DESCRIPTION
Why a fullsuit designed for wind sports?
Most fullsuits are designed for Surf. In Kite and Wing, your interaction with the water is different. You fall, you get back up, and you spend time out of the water with wind exposure. Water that enters often doesn't drain out. The Windfreak addresses this specific issue with the Covert Drain System. It features drainage points at the ankles and lower legs. O'Neill aptly calls this problem 'elephant legs'.
The Covert Drain System
The principle is simple: instead of relying solely on the watertightness of the seals, O'Neill provides a path for water to exit. After a fall, your leg empties instead of remaining weighted down. In a Kite or Wing session where you're back up immediately, you'll feel the difference from the very first hour.
TB4X and taped seams
The construction mirrors the Blueprint series: TB4X neoprene, glued seams, blind-stitched, and then fully taped on the inside. The taping enhances watertightness and, more importantly, provides long-term durability where seams typically fail. It features a F.U.Z.E. chest zip for entry.
A unique piece, in MT
This product description is for a store model, available in size MT. At O'Neill, MT stands for M Tall: the fit of a Medium for a taller body build. The brand's size guide specifies it for riders 185 to 191 cm tall and weighing 73 to 82 kg. Only one is available.
SIZE GUIDE
| Size | Height (cm) | Weight (kg) | Chest (cm) | Waist size (cm) |
|---|---|---|---|---|
| MT | 185-191 | 73-82 | 99-104 | 79-84 |
TECHNICAL SPECIFICATIONS
| Specifications | |
|---|---|
| Type | Men's fullsuit, long sleeves and legs |
| Thickness | 5 mm on the torso, 4 mm on the limbs |
| Admission | F.U.Z.E. chest zip |
| Neoprene | TB4X |
| Seams | Glued seams, blind-stitched, and fully taped |
| Drainage | Covert Drain System at ankles and lower legs |
| Advertised water temperature | 4 to 11 degrees |
| Series | Blueprint |
| Available size | MT |
| O'Neill reference | 5484 |
FAQ - O'NEILL BLUEPRINT WINDFREAK 5/4+ CHEST ZIP
For kitesurfers and wingfoilers who ride in winter. This is the wetsuit O'Neill designed for wind sports. The leg drainage is truly useful only for those who fall and get back up. For pure Surf, the Psycho Tech is more relevant.
The Covert Drain System. O'Neill positions the Windfreak a step above the Blueprint. It adds this drainage system around the ankles and lower legs. The rest of the construction is the same as the series.
Only one size is available here: MT. The O'Neill size guide higher on the page provides its measurements. A wetsuit should be tight when dry. If in doubt, call us before ordering.
Rinse it with fresh water after each session. Turn it inside out and let it dry in the shade on a wide hanger. Do not use sun, a radiator, or a closed bag with the wet wetsuit inside.
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
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