Odor-resistant liner bags for Ursacks

　　This 12 x 20 inch sealable plastic bag is made from special film that is 17,000 times more odor resistant than HDPE. When used properly, the OPSak is 100% water- and airtight. New double zip closure. Each bag weighs about 1 ounce. Use with Ursack to keep bears and other critters from smelling your food. The OPSak fits all Ursacks (One OPSak will work for the Major XL if it's not overstuffed; otherwise two OPSaks are needed for the Major XL.)

　　Ursack not included. The OPSak is not bear or critter resistant on its own.

　　These bags are considered disposable and will need to be replaced after extended use. The closure is a lighter-weight material in order to ensure pliability to create 100% contact throughout the closure. The body of the bag is a durable film that will far outlast the closure. The manufacturer of OPSak has to see any bag that a customer claims was defective at the time of purchase. They will only consider reviewing a bag within 30 days of purchase and the bag must be accompanied with a paid invoice/receipt. Ursack asks that customers contact them directly for all warranties (do not return the item to the retailer for warranty).