märkäpuvun

Märkäpuku, commonly known as a wetsuit, is a garment, typically made of foamed neoprene, that is worn by surfers, divers, windsurfers, kayakers, and others engaging in water sports. Its primary function is to provide thermal insulation, buoyancy, and protection against abrasion and ultraviolet (UV) radiation.

The insulating properties of a wetsuit are derived from the trapped layer of water between the neoprene and the wearer's skin. When the wearer enters the water, a thin layer of water penetrates the suit and is warmed by body heat. This warm water then acts as an insulator, reducing heat loss from the body. The thickness of the neoprene, measured in millimeters, determines the degree of insulation. Thicker wetsuits offer more warmth but can restrict movement.

Wetsuits come in various styles, including full suits that cover the entire body, shorty suits that cover the torso and upper legs, and spring suits that have shorter arms and legs. The choice of wetsuit style depends on the water temperature, activity, and personal preference. Neoprene is also used in drysuits, which are designed to keep the wearer completely dry by using watertight seals at the neck, wrists, and ankles.

Beyond thermal insulation, wetsuits offer protection from the sun's UV rays, which can be particularly intense when reflected off water. They also provide a degree of protection against minor abrasions from rocks, coral, or equipment. The buoyancy provided by the foamed neoprene can also be beneficial in certain water sports, aiding in staying afloat.