CLEARANCE SALE! 

Roots in fabric pots reach the sides and stop growing out because of the "air pruning" effect. Instead, the roots branch out from the center and fill the soil with lots of smaller but stronger roots.  In plastic or ceramic pots, the roots circle around and the plants become root-bound. Less expensive, easier to move around and store, more environmental, and better for the plants; the benefits of fabric pots can surprise you.