Quiksilver Mens Marathon Sessions 3mm Split Toe BootiesWhy did we design our 3mm Everyday Session Wetsuit Booties in our StretchFlight neoprene? Because we want the most out of every surf session, and we take comfort, warmth, and protection seriously. Whats more, this bootie is Bluesign certified and eco friendly, so youd be hard pressed to find anything as sustainable. Did it take countless hours of research and development to create this superior bootie? Yes, it did. And it was absolutely worth it.