Mitten

A mitten is a form of handwear that covers the hand but has separate compartments for the thumb and for the four fingers together. By keeping the fingers in one compartment, mittens reduce exposed surface area and trap warm air, making them particularly effective in cold or damp weather.

Construction and materials: Mittens are commonly made from wool, fleece, or synthetic insulated fabrics, with an outer shell that may be waterproof or windproof. Some designs include a removable lining for added warmth, while others use a sealed construction. Cuffs vary from snug ribbed closures to longer gauntlets that seal at the wrist.

Variants and uses: Mittens are available in casual, fashion, and technical styles. Winter mittens used for skiing or mountaineering often feature waterproof shells, high-level insulation, and reinforced palms, while leather or suede mittens are favored for everyday wear. Infant and children's mittens are sized and sometimes have adjustable fasteners to stay on.

Other uses: The term mitten appears in place names and biology. Michigan’s Lower Peninsula is commonly referred to as the mitten due to its shape, leading to the nickname the Mitten State. The Chinese mitten crab (Eriocheir sinensis) bears the name from its distinctive front appendages.

See also: gloves, handwear, winter clothing.