The fabric density is a term used to describe how densely it’s woven. This influences greatly a fabric strength, thickness, stability, and abrasion resistance. Woven fabric with more picks and ends per centimetre will be heavier than a fabric that is otherwise equivalent if structure and yarn are the same with a lower density of picks and ends. Equally, a knit fabric with a smaller loop size will have more wales and courses per centimetre than a differently similar fabric will be heavier. See Also Abrasion resistance Eco-Fashion Encyclopedia.