Polyester is a synthetic material that is extremely light weight and when made into lifting slings makes a very cost effective lifting sling. The material is soft to touch and therefore is less likely to cause damage to the goods when they are lifted and will not cause the type of injuries to the user associated with wire rope sling, for example cuts caused by broken wires, manual handling.
Synthetic polyester slings are much lighter weight than both wire rope or chain slings and therefore this type of lifting sling is much easier to handle.
Polyester slings are much cheaper than alternative slings made from other materials and usually are lighter, more flexible and have a greater factor of safety, though they do have less abrasive resistance. This can be overcome by using a wear sleeve made from either polyester or from polyurethane.