The Spin Ballet Flat is created with innovative stretch canvas fabric, the fibers stretch and move with the foot, always recovering to the natural shape.Wide elasticized binding and inner silicon lining ensures a tight, non-slip fit.Oustole with ballet flat pleating allows toes to spread and suede sole allows multiple turns with ease. Sizing Suggestion: XS: US 3, S: US 3.5, 4,4.5 (EU size: 35,35.5), M: US 5.5,6,6.5,7 (EU size: 36.5,37,37.5,38), L: US 8,8.5,9 (EU size: 39,39.5,40), XL: US 9.5,10.5,11 (EU size 40.5,41.5,42). Material: Canvas.