O'NEILL Psycho 3mm wetsuit hood, Black, Size Medium — TechnoButter Firewall insulation, adjustable cinch

O'NEILL Psycho 3mm Neoprene Wetsuit Hood in Black (Medium) is a purpose-built cold-water hood that combines TechnoButter Firewall insulation, an adjustable cinch and a trim visor to keep surfers, paddlers and divers warmer and more comfortable in harsh conditions.

Built to perform where wind, spray and chilly water meet, this redesigned Psycho hood focuses on thermal efficiency and fit. It uses O'NEILL's TechnoButter 3 Firewall interior to trap heat while a FineMesh Smoothskin exterior blocks wind and spray. The anatomical 3D construction and glued-and-blindstitched seams reduce flushing and chafing, delivering a snug seal that stays comfortable during long sessions.

How does this hood retain warmth in cold water?

The Psycho hood keeps more heat close to the head with a high-loft Firewall lining that sheds water quickly and slows heat loss. The neoprene thickness and smoothskin exterior work together to limit wind chill and surface cooling. Seams are glued and blindstitched for a tighter barrier against water intrusion without compromising flexibility.

• 3mm TechnoButter Firewall lining for efficient insulation
• FineMesh Smoothskin outer layer reduces wind penetration
• Anatomical 3D fit minimizes gaps where cold water can enter
• Glued and blindstitched seams for reduced flushing

What fit and adjustability features make it secure during activity?

The Psycho hood is shaped in a 3D anatomical pattern that hugs the contours of the head and neck, providing a close fit that moves with you. An adjustable cinch allows quick fine-tuning around the face to reduce flushing and keep the hood in place during waves or paddling. The visor is trimmable so you can customize coverage to suit goggles, sun angles, or personal preference.

• Anatomical 3D design for a snug, streamlined fit
• Adjustable cinch cord for fine facial sealing
• Trim-to-fit visor for personalized coverage and clear sightlines
• Flexible neoprene for unrestricted movement

Which materials and construction details affect durability and comfort?

O'NEILL combined high-stretch TechnoButter neoprene with a FineMesh Smoothskin exterior to balance softness, insulation and abrasion resistance. The Firewall lining is lightweight but thermally efficient, while the smoothskin outer resists wind and surface wear. Glued and blindstitched seams reduce water entry and minimize internal chafe, so the hood stays comfortable through extended sessions.

• Premium TechnoButter 3 neoprene for stretch and insulation
• FineMesh Smoothskin exterior for wind resistance and durability
• Glued/blindstitched seams for water resistance and comfort
• Trim-to-fit visor for tailored protection

Will this hood work for activities beyond surfing?

Yes. The Psycho hood's blend of warmth, low-bulk stretch and weather resistance suits many cold-water pursuits. Whether you paddleboard, kite, dive in chilly conditions or do coastal running with immersion risk, the hood offers thermal protection while maintaining mobility and sightlines.

• Cold-water surfing and bodyboarding
• Stand-up paddleboarding and kayaking in cool conditions
• Cold-weather wind sports and coastal water activities
• Surface support for diving and snorkeling in cooler climates

Who is this for: The O'NEILL Psycho 3mm Neoprene Wetsuit Hood (Black, Medium) is built for water athletes and outdoor enthusiasts who need a low-bulk, high-performance hood to extend comfortable time on cold-water sessions. It suits surfers, SUP paddlers, coastal kite or windsurfers, and anyone who wants better protection from wind, spray and low temperatures without sacrificing fit or mobility.