Premium neoprene working/filed welly with a dual-density sole for great grip on all surfaces.Dual density sole with deep cut, high grip treadExtended rubber overlay to legReinforced toe, instep & heelReinforced shank for additional arch supportAIRMESH – Thousands of tiny vertical fires allow air to circulate throughout the interior surface. Excess humidity and perspiration are quickly wicked away, creating a comfortable environment for your feet. Stretch-fit topline binding snugs calf to keep warmth in and cold out. Neoprene BootieComfort Range – SUB FREEZING to 18˚C