Premium non-marking natural-rubber outsole infused with long-lasting Sulfadex rubber conditioner for additional slip-resistance Exclusive micro-etched CROSSTAR tread design grips, grabs and squeegees water away in any direction for hi-grip performance - guaranteed for the life of the boot 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 Provides exceptional grip and performance on fiberglass, wood or carpeted boat decks in wet or dry conditions.with our exclusive WIXIT Cool-Clad lining! CROSSTAR tread design provides superior grip on wet terrain and sufaces.