O’Neill Psycho Tech 5.5/4 Chest Zip Hooded Men’s Wetsuit
$609.95
Arguably the warmest wetsuit we carry. Sustainable TB4 Firewall technology radiates throughout with TB4 Duraskin Air Firewall in the chest and back.
O’Neill suits ship either from our Oregon shop (3-5 day transit time) or O’Neill’s warehouse (10-14 day transit time).
If your timeline is urgent, text us below for size-specific ETAs. Trust us, O’Neill gear is soooo worth the wait!
DESCRIPTION
- O’Neill’s Psycho Tech range focuses on ultimate warmth and durability with high-performance recycled materials and water-tight double-sealed stitchless seams. Sustainable TB4 Firewall technology radiates throughout with TB4 Duraskin Air Firewall in the chest and back to shield against the cold while retaining and recirculating your body heat. Designed to keep you in the water longer, toasty, and stoked.
KEY FEATURES
- F.U.Z.E. Closure (Chest Zip)
- Redzone Water Resistant Zipper
- 360 degree Barrier With Drainholes and Anti-Flush Barrier (F.U.Z.E.)
- Super Seal Cuffs with Plasma Wrist and Ankle Seals
- Recycled Oyster Shells and Eco Carbon Black Infused Neoprene
- Recycled Dope-Dyed Yarn Jersey
- Aqua Alpha Solvent Free Neoprene Lamination
- Key Pocket with Loop
CONSTRUCTION
- Stitchless Exterior Fluid Seam Weld Technology with Interior Recycled TBX Tape
- Chest / Back: TB4 Duraskin Air Firewall
- Thigh / Butt / Shins / Calf: TB4 Firewall
- Arms / Shoulders: TechnoButter 4
- Entry: TechnoButter 4X
- PLUS (+) = 0.5mm Extra thickness for even more warmth
O’NEILL WETSUIT SIZE CHART
1 review for O’Neill Psycho Tech 5.5/4 Chest Zip Hooded Men’s Wetsuit
Only logged in customers who have purchased this product may leave a review.
Related products
Prolimit Mercury Steamer Freezip 5/4 Men’s Wetsuit 2026
Prolimit Mercury Steamer Free-X 5/4 Men’s Wetsuit 2026
Prolimit Flare Steamer Freezip 4/3 Women’s Wetsuit 2026
A staff favorite because of its ease of entry, great flexibility and warmth. The 100% neoprene suit makes this an easy choice!
Staff Take: "The stretch in the shoulders and arms is perfect for windsurfing and wing foiling. The freezip comes completely apart for easy on and off, and being 100% neoprene free feels as good on the skin as it does on the conscience." — Connie
Prolimit Flare Steamer Free-X 6/4 Hooded Women’s Wetsuit 2026
ION Protection Suit 3/2 SS Front Zip
Protective padding in the shoulders, back, shins, and privates.
Peace of mind for foilers, and beyond.
Ships free in mainland U.S.
What does this Gorge graphic mean?
Prolimit Predator FreeX 4/3 Hooded Men’s Wetsuit 2025
Prolimit Predator FreeX 4/3 Men’s Wetsuit 2024
Flexible, warm and comfortable.
Reliable performance at a great price.
Ships free for mainland U.S. orders.
What does this Gorge graphic mean?
Prolimit Predator FreeX 5/3 Men’s Wetsuit
40% OFF! Most sizes in stock.
Famously flexible suit — especially in shoulder areas critical for mobility, entry and exit.
Ships free for orders in the mainland U.S.
What does this Gorge graphic mean?
Robert (verified owner) –
Tall size fits perfectly, I am 6’3″ 185 lbs. Very little water comes through this suit. Super flexible which is what I wanted. Also warm, I have used it into the 30’s