O'Neill Psycho 1 5/4
O'Neill Psycho 1 5/4 The O'Neill Psycho 1 is minimal seam madness and the ultimate high-performance cold water wetsuit. The Psycho 1 will raise your performance level to new heights. All new Technobutter II neoprene provides a lighter, quicker drying and more flexible suit. back zip suit with O'Neill Z.E.N closure system.