balletballet says:

The Pro Arch are fabulous Split sole shoes from Bloch. The split sole means your foot has the freedom to point and stretch. The canvas will hug your foot. 

The manufacturer says

* Allows a dancer to experience the freedom of wearing nothing on their feet but still feel protected
* A soft but durable square canvas upper is combined with fine mesh inserts that hug to the foot and allow it to breathe
* Elastic binding without cord encircles the top line of the shoe to create a continuous and clean line
* The forefoot outsole pad is wider and shorter creating a flatter platform to pivot on, eliminating bulk in the arch and providing maximum metatarsal protection
* Seam lines have also been positioned to avoid discomfort from ridges
* Cotton with anti-bacterial properties lines canvas
* Elastic straps partially attached but not pre-sewn. Require sewing according to fit
* Material: Canvas
* Sole: Suede foot pads