I just finished my new under quilt 3 in loft, fulls size 70"X45". Weight 17.3 oz. in the stuff sake. Its made with 1/2 cuben fiber and 1/2 momentum. 12oz of down. I made 6 1/2 inch panels of each. Each chamber has Cuben on one side and Monentum 55 on the other. Took about 8 hours to sew and stuff.