Men's skirts
Men's skirts are skirts worn by men.  The wearing of a skirt is conventionally, in North America and Europe, an expression of a female role.  However, people have variously attempted to promote the wearing of skirts by men and to do away with this sex distinction, albeit with little general success and considerable cultural resistance

# Background
From the early Victorian period there was a decline in the wearing of bright colours and luxurious fabrics by men, with a definite preference for sobriety of dress.  By the mid 20th Century orthodox Western male dress, especially business and semi-formal dress, was dominated by sober suits, plain shirts and ties.
In the 1960s there was widespread reaction against the accepted (North American and European) conventions of male and female dress. This unisex fashion movement aimed to eliminate the sartorial differences between men and women. In practice, it usually meant that women would wear male dress, i.e. shirts and trousers. Men rarely went as far in the adoption of traditionally female dress modes. The furthest that most men went in the 1960s in this regard were velvet trousers, flowered or frilled shirts and ties, and long hair.
In the 1980s, a few male celebrities dressed in skirts, and fashion designers such as Jean-Paul Gaultier, Giorgio Armani, John Galliano, Kenzo, Rei Kawakubo, and Yohji Yamamoto tried to promote the idea of men wearing skirts, but failed to popularize the idea.  Male skirt wearing remains firmly linked with ideas of effeminacy.

# Metropolitan Museum of Art exhibition
In 2003, the Metropolitan Museum of Art displayed an exhibition,  organized by Andrew Bolton and Harold Koda of the Museum's Costume Institute and sponsored by Gaultier, entitled Bravehearts: Men in Skirts.  The idea of the exhibition was to explore how various groups and individuals (from hippies through pop stars to fashion designers) have promoted the idea of men wearing skirts as "the future of menswear".  It displayed male skirts on mannequins, as if in the window of a department store, in several historical and cross-cultural contexts.
The exhibition display pointed out the lack of a "natural link" between an item of clothing and the masculinity of femininity of the wearer, mentioning the kilt as "one of the most potent, versatile, and enduring skirt forms often looked upon by fashion designers as a symbol of a natural, uninhibited, masculinity".  It pointed out that fashion designers and male skirt-wearers employ the wearing of skirts for three purposes: to transgress conventional moral and social codes, to redefine the ideal of masculinity, and to inject novelty into male fashion.  It linked the wearing of male skirts to youth movements and countercultural movements such as punk, grunge, and glam rock, and to pop music icons such as Boy George and Adrian Young.
Ellsworth eavesdropped on several visitors to the exhibition, noting that because of the exhibition's placement in a self-contained space accessed by a staircase at the far end of the Museum's first floor, the visitors were primarily self-selected as those who would be intrigued enough by such an idea in the first place to actually seek it out.  According to her report, the reactions were wide-ranging, from the number of women who teased their male companions about whether they would ever consider wearing skirts (to which several men responded that they would) to the man who said "A caftan  after a shower or in the gym  can you imagine? 'Excuse me!  Coming through!'".  An adolescent girl rejected in disgust the notion that skirts were similar to the wide pants worn by hip-hop artists.  Two elderly women called the idea "utterly ridiculous".  One man, reading the exhibition's presentation on the subject of male skirt-wearing in cultures other than those in the North America and Europe, observed that "God!  Three quarters of the world's population !".
The exhibition itself attempted to provoke visitors into considering how, historically, male dress codes have come to this point, and whether in fact a trend towards the wearing of skirts by men in the future actually exists.  It attempted to raise challenging questions of how a simple item of dress connotes (in Ellsworth's words) "huge ramifications in meanings, behaviours, everyday life, senses of self and others, and configurations of insider and outsider".

# General Popularity
The wearing of skirts, kilts, or similar garments on an everyday basis by men in western cultures is, as of 2007, very much a minority movement.
Kilts, and derivatives of the garment remain popular. One manufacturer of contemporary kilt styles claims to sell over 12,000 such garments annually, resulting in over $2 million annually worth of sales, and has appeared at a major fashion show.  According to a CNN correspondent: "At Seattle's Fremont Market, men are often seen sporting the Utilikilt"  US News said in 2003 that "... the Seattle-made utilikilt, a rugged, everyday riff on traditional Scottish garb, has leapt from idea to over 10,000 sold in just three years, via the Web and word of mouth alone." "They've become a common sight around Seattle, especially in funkier neighborhoods and at the city's many alternative cultural events. They often are worn with chunky black boots." writes AP reporter Anne Kim. "I actually see more people wearing kilts in Seattle than I did when I lived in Scotland," one purchaser remarked in 2003.
In addition, since the mid-1990s a number of clothing companies have been established to sell skirts specifically designed for men. These include Macabi Skirt in the 1990s, Menintime in 1999 and Midas Clothing in 2002.

# Wicca and neo-paganism
In Wicca and neopaganism in the United States of America, men (just as women) are encouraged to question their traditional gender roles.  Amongst other things this involves the wearing of skirts at festivals and sabbat celebrations, as ritual clothing (which Eilers equates to the "church clothes" worn by Christians on Sundays).

# Dance
In some western dance cultures, men commonly wear skirts and kilts. These include a broad range of professional dance productions where they may be worn to improve the artistic effect of the choreography, a style known as contra dance, where they are worn partly for ventilation and partly for the swirling movement, gay line dancing clubs where kilts are often worn, and revellers in Scottish night clubs where they are worn for ventilation and to express cultural identity.

# Outside of Western cultures
Outside of Western cultures, male clothing includes skirts and skirt-like garments. One common form is a single sheet of fabric folded and wrapped around the waist, such as the dhoti in India, and the Lungi and sarong in South/Southeast Asia.  Some long robes also resemble a skirt or dress, including the Middle Eastern and North African caftan and djellaba.

# In fiction
One notable example of men wearing skirts in fiction is in early episodes of Star Trek: The Next Generation. The uniforms worn in the first and second season included a variant consisting of a short sleeved top, with attached skirt. This variant was seen worn by both male and female crew members. The Art of Star Trek explained that "the skirt design for men 'skant' was a logical development, given the total equality of the sexes presumed to exist in the 24th century."