Are you looking for the ultimate pack material? We went a step above and designed our 210D with genuine ROBIC® fibers which is up to 50% stronger than your normal nylon 6 fibers. Our ROBIC® 210D has a grid of white Extreema® (High Density Polyethylene – HDPE) threads for exceptional tear strength, as well as a diagonal woven ripstop. This fabric gives you a great combination of durability and strength.