Elemental Leather Hybrid Split Sole Ballet Shoe - (MB115C) -ChildMDM Ballet Shoes Fitting Guide MDM Ballet Shoes Featuring patented Dance Base Support technology the Elemental is the perfect entry point to experiencing new generation ballet technology. The Child Size Elemental Ballet Shoe is a hybrid sole leather ballet slipper that has been specifically designed to supersede the full sole ballet slipper. The MDM hybrid sole has a split sole outside appearance combined with the functional resistance of a full sole.