Question:  Rah-rah skirt was considered a heavier version of what ballet costume?

Context paragraphs:
The Outsider (song): "The Outsider" is a song from A Perfect Circle's second album, "Thirteenth Step".  It uses a 6/8 and 4/4 time signature.  Two remixes of "The Outsider" were made for "aMOTION".  James Iha made the "Frosted Yogurt mix", which uses a much more toned-down, quiet, synthesized sound than the original.  Danny Lohner's "Apocalypse Mix" is a darker, heavier version that starts as an ambient doomscape and ends in a way that resembles a music-playback program crashing.  The latter version was included in the soundtrack to the movie "" under the title "Resident Renholder Mix" and also in the "Prison Break" soundtrack under the title "Apocalypse mix".  The "Resident Renholder Mix" of the song was featured in the premiere trailer for "".  It is also featured in the film during the Alice vs. Albert Wesker battle and the ending credits.  Additionally, the song is in the video game ""

Ballerina skirt: Ballerina skirt is a full skirt that reaches to mid-calf or just above the ankles, worn as a costume in a ballet performance.  It is often made up of multiple layers of fabric.  It was a popular casual skirt style during the 1950s.

1907 Sydney bathing costume protests: The 1907 Sydney bathing costume protests were a response to a proposed ordinance by the Waverly Shire Council to require the wearing of a skirt-like tunic by male bathers.  On the morning of Sunday 20 October, thousands of surf bathing enthusiasts poured onto the sands of Bondi, Manly, and Coogee beaches in various types of feminine dress enacting a humorous mockery of the proposed regulations.  The protest at Bondi was reportedly the largest of the three, with a "swarm of humanity" participating in and observing the protests.  The positivity with which the protests were regarded by both the general public and the media proved the end for the Waverly council’s costume proposal; the tunic/skirt ordinance was not included in the beach ordinances promulgated in the following months.

Elisha Willis: Elisha Willis is a retired ballet dancer and former principal at the Birmingham Royal Ballet.  Willis was born in Australia and trained at the Australian Ballet School.  She joined the Australian Ballet in 1999 and later in 2003 joined the Birmingham Royal Ballet, where she covered extensive roles.  She is well known for the title role in David Bintley's Cinderella which was also released as DVD.  In 2016 she terminated her 13 year career at the Birmingham Royal Ballet in order to pursue her next career in ballet costume making.  She is married and currently resides in Moseley.

Rah-rah skirt: The rah-rah (or ra-ra) skirt is a short flounced layered skirt that originated in cheerleading and became a popular fashion trend among teenage girls in the early 1980s.  As such it marked, as the "Oxford Dictionary" noted, the first successful attempt to revive the miniskirt that had been introduced in the mid-1960s.  It was created by Angela Stone and Gifi Fields, who based the idea on creating a tutu out of heavier fabric.  Later in the 1980s it was often worn with leather, denim or lace.

Tutu (clothing): The modern tutu is a dress worn as a costume in a ballet performance, often with attached bodice.  It may be made of tarlatan, muslin, silk, tulle, gauze, or nylon.  Modern tutus have two basic types: the Romantic tutu is soft and bell-shaped, reaching the calf or ankle; the Classical tutu is short and stiff, projecting horizontally from the waist and hip.

Holly Hynes: Holly Hynes is an accomplished costume designer with over 250 ballets to her credit, including more than 70 at the New York City Ballet.  Ms. Hynes' designs are also on view in companies around the world, including American Ballet Theatre, San Francisco Ballet, Bolshoi Ballet, National Ballet of Canada, Kirov Ballet, Royal Ballet, Paris Opera Ballet, Royal Danish Ballet, La Scala Theatre Ballet, Koninklijk Ballet van Vlaanderen, Houston Ballet, BalletMet, Pennsylvania Ballet, Ballet Vancouver, Les Grands Ballets Canadiens, American Repertory Ballet, Pacific Northwest Ballet, Atlanta Ballet, Richmond Ballet, Nashville Ballet, Miami City Ballet, Alberta Ballet, Joffrey Ballet, Kansas City Ballet , and the Suzanne Farrell Ballet at The John F. Kennedy Center for the Performing Arts, where she serves as the resident costume designer.

Nationella dräkten: Nationella dräkten (] , "the national costume") is a historic Swedish costume, designed by King Gustav III and introduced in 1778.  It was designed for the nobility and the middle class with the intention of limiting rising consumption and import of luxury within fashion, which was considered a drain on the economy and detrimental to society because of ensuing poverty.  A masculine and a feminine costume were designed.  The woman's version of the costume was to have a lasting effect, modified several times later, as the official costume of the Royal Court.

Gifi Fields: Gordon Ivan "Gifi" Fields (born June 1951) is a British fashion designer and businessman.  He is a co-founder of the British Fashion Council and one of the creators of the Rah-rah skirt.

Chang'ao: Chang-ao () is the historical Chinese attire for women.  It is a form of formal wear, and is often perceived as a longer version of ruqun.  However, it was actually developed from zhiduo during the Ming Dynasty, and is worn over a skirt.  It is wide-sleeved, shorter than zhiduo and has no side panels (暗擺) at the side slits (thus showing the skirt worn underneath).  There is often an optional detachable protective huling (護領, lit.  "protect collar") sewn to the collar.  The huling can be of white or any other dark colours.  The collar is of the same colour as the clothing.

Supporting paragraphs: Rah-rah skirt Tutu (clothing)
Answer: tutu