These lovely little skirts are cut in the School of American Ballet (SAB) shape, and becoming really popular outside of the US. 
 
Made from lycra/spandex, they are very practical, pull on, and the cut really lengthens the leg line. Perfect if you like your skirt short: very short at the sides, a little longer at the front and longest at the back. The *full* SAB skirt is an elipse shape and goreously springy when jumping! 
 
For a less full shape, have a look at the slimline alternative
 
Pictued here in coco blush and jade. Also available in black, white (matt and shiny), tea rose, pale blue, lemon yellow, silver grey, teal, mocha, coco blush, ginger, conker, dark brown, red, cream, indigo, watermelon sugar, mocha, graphite grey, pale blue, jade, strawberry milkshake, raspberry, navy blue.
 
Here are the approximate lengths according to waist sizes (excuse mixed cms and inches!!) Or let me know your preferred length. 
 
Waist 20-23" = Front 21.5cm | Back 24.5cm | Side 17cm
Waist 24-27" = Front 26.5cm | Back 30cm | Side 20cm
Wasit 28-30" - Front 32cm | Back 37cm | Side 26cm
Waist 31-34" = Front 34cm | Back 40cm | Side 28cm
 
Gracie photographed by Jon Raffoul