Featuring a fresh chic design

stink-free design that's designed to keep debris out

Back patch pocket

When it's too chilly for the rashguard but those great waves are going to heat you up fast in something too thick

Freedom of movement has never looked so good

O'Neill Men's Psycho One Zen 4/3mm Back Zip Wetsuit YGroup_8650015604904 Featuring a fresh chic designThe O'Neill Men's Psycho One Zen 4 3mm Back Zip Wetsuit features advanced Technobutter 3 Neoprene that combines an unparalleled premium feel and lightweight flexibility. Composition 100% Neoprene. Features Technobutter 3 Neoprene: TB3 Exterior Jersey Maximum stretch hydrophobic yarns that keep your flexible and dry by shedding water for the lifetime of the suit. Envy Foam Rubber Core Featherlight warmth. Microscopic air cell rubber core formula