Rip Stop By The Roll has an exceptional line of ultralight MEMBRANE silpoly and poly taffeta nylons available below. Our MEMBRANE 10 is incredibly thin and light at 0.66oz./yd2, making it great for use in quilts, jackets, sleeping bags, and as a lining material. The MEMBRANE Silpoly fabric we carry has a low water absorption and high UV resistance. Or, choose the MEMBRANE Silpoly PU4000 with low stretch and extremely high water resistance. It's perfect for ponchos, gear sacks, pack covers, etc.