Choosing among surf wetsuits & rash guards is less about chasing a shared thickness label and more about matching design, fit, condition, and price to your needs. The tension here is immediate: the O'Neill Psychotech names a hooded format, while the O'Neill Psycho 2 presents a simpler surf-wetsuit option at a lower listed price. Both carry a 4/3mm specification, so the useful payoff is knowing which trade-off matters before choosing.
Quick verdict
Choose the O'Neill Psychotech 4/3mm Hooded Surf Wetsuit if the hooded format is essential and the cracked seam-weld taping is acceptable. Choose the O'Neill Psycho 2 4/3mm Surf Wetsuit if the lower listed price matters more and its listed fit works. The listed-price gap is $70. Use the listed size as a tie-breaker, then weigh the format and condition details rather than treating the shared thickness specification as a winner by itself.
Compact comparison
| Detail | O'Neill Psychotech | O'Neill Psycho 2 |
|---|---|---|
| Listed price | USD 150.00 | USD 80.00 |
| Listed size | Small | Large |
| Named format | 4/3mm hooded surf wetsuit | 4/3mm surf wetsuit |
| Condition | Pre-owned; described as excellent used condition | Pre-owned; described as good used condition |
Where each wins
Psychotech wins on format specificity. The hooded wording in its title makes it the direct answer for shoppers who want that feature named clearly. Psycho 2 wins when a lower listed price is the deciding factor and the listed fit works. The tie-breakers are concrete: the hooded format, the price gap, and the size shown for each suit. The shared thickness specification does not establish a performance winner.
Product notes
O'Neill Psychotech Hooded Surf Wetsuit

Choose the O'Neill Psychotech Hooded Surf Wetsuit when its specific condition details matter alongside its design. The description calls the suit excellent used condition and says the actual neoprene has no tears or holes, giving shoppers a concrete reason to consider it. The limitation is equally specific: some fluid seam weld taping is cracked. That issue should temper the appeal even though the neoprene itself is described as intact. Psychotech is therefore a focused choice for the hooded format, not an automatic condition winner. Its listed Small size also makes fit an important part of the decision, rather than something to overlook because of the design.
O'Neill Psycho 2 Surf Wetsuit

O'Neill Psycho 2 Surf Wetsuit is the direct choice for a shopper who prioritizes a lower listed price and a straightforward surf-wetsuit format. Its description calls it good used condition, giving a clear condition detail to weigh alongside cost. The limitation is that it is pre-owned, so it may not suit a shopper who specifically wants the Psychotech description's excellent used condition. The listed Large size is another practical boundary for fit. For the right wearer, Psycho 2's lower price is the central reason to choose it; shoppers seeking the hooded design named on Psychotech should choose the other format instead.
Final choice by use case
- Hooded design is the priority: choose O'Neill Psychotech, with the cracked fluid seam weld taping treated as the central limitation.
- Lower listed price is the priority: choose O'Neill Psycho 2 when the listed size matches the wearer.
- Fit is the priority: use the size row as the tie-breaker; the comparison is Small versus Large, so price should not override a size mismatch.
- If the 4/3mm specification is your only deciding factor: it is shared, so use the hooded format, listed size, and condition wording to make the final call.