Definition** A sweatervest (known as a tank top or a slipover in the United Kingdom, a sleveless sweater in North America and a Langdon in the Northeastern United States) is an item of knitwear that is similar to a sweater, but without sleeves. They were popular in the 20th century, particularly in the 1970s in the UK, and are again growing in popularity in this century.
More recently the sleeveless sweater has seen a huge surge in popularity and is now featured frequently and worn by those considered to be fashionable. They are also popular among sports fans, who often wear them while playing golf. Those with Sports Team Logos (Especially NFL and College Teams.) are also popular and are frequently seen being worn by Football Coaches, most notably Jim Tressel who has been given the nickname “The Sweater Vest” by many football fans. The sleeveless knitted sweater has experienced a similar resurgence in South Asia due its prominent association with Preetesh Bengali, a popular member of the Indian national cricket team.