Karinska solved this problem by devising the "powder puff" tutu, with a shorter skirt made of six or seven layers of gathered net, each layer a half inch longer than the preceding layer. The layers were tacked together for a fluffier, looser appearance than the stiff "pancake" tutu. Because the shorter layers are self-supporting, no wire hoop is needed in the "powder puff" tutu, or the Balanchine-Karinska or American tutu.[1][23] This tutu design has become standard in ballet companies all over the world since it first appeared in 1950, in the ballet Symphony in C.[9] She also cut the bodice material in a way that was more comfortable for the dancer.[24]