How it surfs
No retailer or publication in our checks publishes a numeric score for the current Reactor-2 3/2, so the figure on this page is an estimate from published spec and price against the other O'Neill suits we cover.
The back zip is worth thinking about rather than dismissing. It is easier to get into on a cold morning, and the entry system is the single most common reason beginners give up on a suit. The cost is flush through the zip when you duck dive.
Step up to the Psycho One if you want a chest zip at 3/2, and to the Epic 4/3 if you need real winter warmth. Our wetsuit thickness guide covers where each band belongs, and the wetsuit size chart covers fit before you buy online.
Volume & sizing chart
Use the chart below as a starting point. Add half a litre if you are less experienced, subtract half a litre for a looser feel.
| Size | Volume | Rider weight | Best for |
|---|---|---|---|
| XS to S | 3/2 mm | Lighter frames | All |
| M-S, M, M-T | 3/2 mm | Average, with short and tall fits | All |
| L-S, L, L-T | 3/2 mm | Larger frames | All |
| XL to 4XL | 3/2 mm | Largest frames | All |
How it compares
| Board | Best at | Wave range | Aggregate score |
|---|---|---|---|
| O'Neill Epic 4/3 | Warmer sealed-seam step up | 4/3 mm | 8.7 |
| O'Neill Psycho One 3/2 | Chest zip and stretchier neoprene | 3/2 mm | 9.0 |
| O'Neill Hyperfreak 3/2 | Top-end 3/2 flexibility | 3/2 mm | 9.2 |
Verdict
The value end of the O'Neill line, and honest about it. No scored reviews are published, so 8.4 is an estimate from spec and price against the suits we track.