ONeill Psycho Tech 4/3+ Chest Zip Wetsuit Black

• Thickness - 4/3 mm
• Seams - Fluid Seam Weld Stitchless Seam Technology
• Zip - Chest Zip (F.U.Z.E)
• Neoprene - 70% Technobutter 4, 30% TB4X
• Chest / Back Technobutter 4 Air-Firewall Smoothskin
• Lower Half Technobutter 4 Firewall
• Contortionist Seamless Shoulder
• Sidewinder S-Curve Seams
• External Key Pocket with Loop
• Warranty - 1 year workmanship and materials

The O'Neill Psycho Tech range builds on the success of Technobutter neoprene and advanced Firewall linings to deliver a serious balance of warmth and flexibility in a slightly lighter-weight 4/3 build. It’s still very much a premium suit, but you feel that performance straight away in the water. Sitting right at the top of the O’Neill range, the level of tech packed in is impressive. What stands out most is the near stitchless construction — using glue, tape and Fluid Seam Weld — which really improves flexibility, especially through the upper body. The TB4X neoprene under the arms keeps things super stretchy where you need it most, while the chest and back panels use O’Neill’s Air Insulated Neoprene to retain heat without feeling restrictive. The addition of Graphene-infused linings helps to distribute warmth more efficiently, making this a great option for UK spring, autumn and milder winter sessions. If you want a high-end suit that blends warmth, stretch and reduced bulk, this is right up there.

The O’Neill Psycho Tech 4/3mm wetsuit is designed for surfers who want premium warmth without the extra bulk of a full winter suit. Built with Technobutter 4 Firewall and TB4 Air Firewall in the chest and back, it traps and recirculates body heat while maintaining excellent flexibility. The double sealed stitchless seams enhance durability while keeping water entry to a minimum, and the lightweight construction makes it ideal for longer sessions in variable conditions. Designed to keep you warmer, lighter and more comfortable in the water, the Psycho Tech 4/3 delivers that ‘Always Summer on the Inside’ feel across a wider range of conditions.

• We started selling wetsuits over 30 years ago
• We use the suits we sell, call our friendly staff for advice on 01243 674830
• Our store has Europe's largest dedicated wetsuit showroom
• No hassle returns policy, if its not right just send it back for a full refund or exchange