2mm Highline - Split Toe Wetsuit Boots for MenFeaturesStretchFlight neoprene for increased warmth and comfort without sacrificing flexibilityFreeMax super stretch neoprene for great performance & durability24% less CO2 emissions per wetsuitLimestone-derivate eco-friendly neoprene made from scrap rubber tires and Bluesign® certifiedSeams: GBS [glued and blindstitched] seams for maximum flexibility and minimal water entryAqua Alpha, non-toxic, water-based glues