The O’Neill Psycho 3mm Coldwater Hood is a solid, no-frills option we’ve used to stretch our 3/2mm suits into the cooler fall and spring months. It fits well, uses quality materials, and gives us reliable warmth and comfort for most sessions. The biggest drawback is the lack of a neck guard, which means we can still get flushed on harder falls—but overall, it’s a dependable, straightforward hood that does exactly what we need for colder-season river surfing.