“These three yellow duffles by Eagle Creek are all listed as being manufactured with "Bi-Tech fabric". Most Eagle Creek luggage is made of nylon, better and stronger than cheaper polyester. That is one of the big reasons why I purchase Eagle Creek. Does anybody know what this new "Bi-Tech" fabric is - nylon, polyester, or some new tech combo fabric?”
The response I received from Eagle Creek is that Bi-tech fabric is water resistant and anti-abrasion leather-like material. Eagle Creek does not list the exact make up of the fabric.