Ballet Shoes…Leather or Canvas

Would you rather wear canvas or leather ballet shoes?  The popularity of canvas ballet shoes is growing.  Most canvas ballet shoes are a split sole design and are for a more advanced dancer.  Bloch has taken the canvas shoe to another level with a stretch canvas.  This shoe can cradle the foot and changes shape as the foot points.  Some dancers have stated they feel the massage effect of the dance shoe as they are dancing.  I’m curious as what do you prefer and why?