THREE-PLY DESIGN - Provides higher strength than similar gauge liners without three-ply construction.ANTIMICROBIAL ODOR CONTROL - Inhibits the growth of odor-causing bacteria, keeping surfaces cleaner.STAR-SEALED SEAMS - Helps provide the most leak resistant seal available.SUPER HEXENE MATERIAL - Manufactured from premium grade Super Hexene resin to help withstand both sharp and heavy objects without causing zippering or straight line tears.MADE IN THE U.S.A.