Ted Cruz: Trump-Bashing 'Breathe' Yoga Mat On Back Order

Ted Cruz has turned his "breathe" jab at Donald Trump from last week's GOP debate into a cash cow by slapping it onto a yoga mat ... and the demand is off the charts.

We got Cruz outside of Dulles airport, ticking off the benefits of the portable American-made mat he recently listed for sale on his website.

Truth is, the thing sells itself. The first lot hasn't shipped yet, but it's already on back order.

Still, if you needed any more convincing, Cruz gives a hard sell.