Nutrifield COCO Perlite Blend 50L
 
This is a Blend of 30% Perlite Media and 70% Coco media.
 
The idea is to consistently blend even amounts of Perlite into the Coco to improve drainage when too wet, and water holding when too dry. Basically meaning that Perlite is a very good media while Coco can get too wet or Hydrophobic meaning once it dries out too much it can repel water.