The lightweight and compressible Ursack Major 15-liter bear sack is made of bulletproof Spectra fabric to prevent bears from getting to your food. • Bag measures about 8 x 18.5 in. (diam. x H) when cinched closed, holds about 915 cu. in. (15 L) and weighs 8.7 oz. • Comes with an integrated 6 ft., 2,500 lb. tensile-strength cord • Ursack highly recommends using an OPSak odor barrier bag or an aluminum liner (both not included) with the bag • Updated version features a tighter weave and more than double the tear-strength of previous models • Passed the Interagency Grizzly Bear Committee (IGBC) test and was placed on its bear-resistant products list on July 31, 2014 • The IGBC list is relied on by many wilderness agencies but not all; wilderness restrictions may still apply depending on where you travel-please check first Gear Capacity (L) 15 liters Gear Capacity (cu. in.) 915 cubic inches Material(s): Spectra Dimensions: Flat: 12.8 x 21 in.; In use, cinched: 8 × 18.5 in. Weight: 8.8 ounces