Bloch Performa Canvas Ballet Shoe Size 2B Bloch's Performa Stretch Canvas ballet slipper is designed with a soft, stretchy, lightweight canvas to accentuate the foot and hug the arches. The generous leather sole pads make balancing and turning easier, and the shock absorbing heel cushioning provides comfort. Pre-sewn crossed elastics and a drawstring-free design make this shoe ready to wear out of the box.