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Get the most out of your boots with the O'Neill Mutant 3 mm ST Boots. Made with FluidFlex™ Firewall for superior warmth, and a split toe for precise board control, you'll be the ruler of the waves, even when it's cold and the rest of your buds don't want to dip a toe in. Internally welded seams and glued and blindstitched seams give you superior waterproofing for the most comfort possible.
FluidFlex™ Firewall – Measurably lighter, warmer and more flexible.
Internal seam weld
Ultralight foxing support system
Multidensity 3mm rubber sole split toe