Natural Fiber Blend Balances Water Distribution Keeps Root Zones Temperate In Ground and above Ground Growing Convenient handles for mobility Designed by and for the professional nursery, Root Pouch Charcoal fabric is a perfect production container. Adding natural fibers, Root Pouches Grey line delivers the root structure you need by balancing water distribution, pruning roots by entrapment, and keeping root zones temperate. Plus, Root Pouch handles make moving plant material easier than ever.