Insulated gloves and mitts keep the hands warm. They are worn, among other things, when working outdoors, restocking frozen food, and on fishing boats or in cold storage rooms. Chemical-resistant gloves are recommended for handling hazardous liquids. Designed with a cuff to keep dirt and contamination out, knit gloves are breathable and form-fitting. It is imperative to note that mechanics' and riggers' gloves have high dexterity for general maintenance and repair work. For their durability and dexterity, leather gloves are used in forestry, landscaping, and general construction. Rubber gloves are useful when stocking frozen foods, fishing, or maintaining pools and ponds.