NON-INSULATED. An Alaskan staple in the commercial fishing industry, these boots will give you flexible, all-day comfort and the best protection against the broadest range of acids, corrosives, and contaminants. Great for use in commercial fishing, canneries, general outdoor activities, & farming. Flexible, hand-layered construction. Triple-dipped shells for extra tough, extra watertight protection. Non-Slip Chevron outsole. 100% waterproof and seamless for seal-tight protection. Highly resistant to many organic and inorganic acids, chemicals and contaminants. NEW additional comfort insole provides more shock absorption, is quick to dry, and it's breathable.