Simms' Headwaters Pro Boot (Felt) brings superior skills to slick underfoot scenarios. Waterproof nubuck leather with a TPU-coated textile upper upper combine to limit line-snares while simultaneously winning the war against wear and tear. Dual-density EVA midsoles minimize shock while an RiverTread Platform for best-in-class wading comfort maximizes underfoot stability. And die-cut, full-coverage retention plates provide superior rigidity and the perfect home for Hardbite studs if you choose to add them. Felt 12mm outsoles come standard.