Premium non-marking natural-rubber outsole infused with long-lasting Sulfadex rubber conditioner; Exclusive micro-etched CROSSTAR tread design grips, grabs and squeegees water away in any direction for hi-grip performance; 9" over-the-ankle cut provides optimum coverage and protection around the lower ankle, upper instep and achilles tendon; Rocker-topline design and rigid heel kick for easy on/off convenience; WIXIT Cool-Clad wicking airmesh lining with added micro-dot perforations. Wicks away moisture and allows the air to flow more than traditional airmesh. Keeps the foot cooler in warmer temperatures; Steel shank for added arch support bonus features