Buy the best in insulation for underquilts or top quilts, sleeping bags, and other outdoor gear or clothing at Rip Stop By The Roll. Choose from our high-quality, natural goose/duck down and synthetic insulation from brands such as Climashield APEX, Primaloft, and HyperDRY 800 and 850 fp goose and duck down insulation products. Stay dry in wet or humid conditions with Climashield and HyperDRY products. Ordering is easy. Simply select your insulation type and amount (by the linear yard just like fabric).