Fabric: A knitted polyester base material (2.6 oz. per yard), laminated to a PVC polyurethane layer (2.4 oz. per yard), for a total weight of 5 oz. per yard. The strength to weight ratio of this fabric is remarkable--an entire set (jacket and bibs) weighs just 2 pounds. Surprisingly tough, this fabric is suitable for many activities. Another attribute of this material is that it is quiet, an important consideration for hunters.