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Long underwear
Long underwear, also called long johns or thermal underwear, is underwear with long legs and long sleeves that is normally worn during cold weather. It is commonly worn by people under their clothes in colder climates.
In the United States, it is usually made from a cotton or cotton-polyester-blend fabric with a waffle weave texture, although some varieties are also made from flannel, particularly the union suit, while many newer varieties are made from polyester, such as the Capilene trade name.[citation needed]
European manufacturers use wool blends or even 100% wool, usually Merino or other high-quality wool.[citation needed] Some models might include a thin layer of polyester to transport moisture away from the skin. Wool, in addition to being fire retardant, provides highly effective insulation and will keep its insulating properties even when wet, unlike cotton.
The type known as "thermal underwear" is made from two-ply fabric of either a wool layer and an artificial fibre, only wool or – again mostly in the U.S. – two layers of only artificial fibres, which uses trapped body heat to insulate against cold air. They are typically skin hugging, but not compression, to better trap air near skin for insulation and wick away moisture.
The manufacturing foundations of long johns may lie in Derbyshire, England, at John Smedley's Lea Mills, located in Matlock. The company has a 225-year heritage and is said to have created the garment, reputedly named after the late-19th-century heavyweight boxer John L. Sullivan; the company still produces long johns.
In 2004, Michael Quinion, a British etymologist and writer, postulated that the john in the item of apparel may be a reference to Sullivan, who wore a similar-looking garment in the ring. This explanation, however, is uncertain and the term's origin is ultimately unknown.
It has also been posed[by whom?] that the term is an approximation of the French longues jambes, which translates to 'long legs.'[citation needed]
Long johns were first introduced into England in the 17th century, but did not become popular as sleepwear until the 18th century.
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Long underwear
Long underwear, also called long johns or thermal underwear, is underwear with long legs and long sleeves that is normally worn during cold weather. It is commonly worn by people under their clothes in colder climates.
In the United States, it is usually made from a cotton or cotton-polyester-blend fabric with a waffle weave texture, although some varieties are also made from flannel, particularly the union suit, while many newer varieties are made from polyester, such as the Capilene trade name.[citation needed]
European manufacturers use wool blends or even 100% wool, usually Merino or other high-quality wool.[citation needed] Some models might include a thin layer of polyester to transport moisture away from the skin. Wool, in addition to being fire retardant, provides highly effective insulation and will keep its insulating properties even when wet, unlike cotton.
The type known as "thermal underwear" is made from two-ply fabric of either a wool layer and an artificial fibre, only wool or – again mostly in the U.S. – two layers of only artificial fibres, which uses trapped body heat to insulate against cold air. They are typically skin hugging, but not compression, to better trap air near skin for insulation and wick away moisture.
The manufacturing foundations of long johns may lie in Derbyshire, England, at John Smedley's Lea Mills, located in Matlock. The company has a 225-year heritage and is said to have created the garment, reputedly named after the late-19th-century heavyweight boxer John L. Sullivan; the company still produces long johns.
In 2004, Michael Quinion, a British etymologist and writer, postulated that the john in the item of apparel may be a reference to Sullivan, who wore a similar-looking garment in the ring. This explanation, however, is uncertain and the term's origin is ultimately unknown.
It has also been posed[by whom?] that the term is an approximation of the French longues jambes, which translates to 'long legs.'[citation needed]
Long johns were first introduced into England in the 17th century, but did not become popular as sleepwear until the 18th century.