The Air Compressor is Granite Gear’s answer for the ultralight packer who wants to save weight by compressing gear and carrying a smaller pack. If you’re familiar with the Rock Solid compression stuff sacks, you know they’ve been making the best packing systems since beginning in 1986. If you think about it, these stuff sacks need to handle a lot of stress, and it’s no easy feat to shave ounces, but that’s exactly what they’ve done. 210 denier lid and arches are beefy where it’s needed. . See-thru Sil-Nylon fabric allows you to see what’s inside. Keep gear organized and color coded. Fully finished seams. Compress lofty items to a rock-hard state without bulging. New bloc shape makes them perfect for stacking in your pack. New Lineloc technology is 30% lighter than webbing compression systems. Micro Cord Drawstring. Micro Poplock. Weighs 1.76 oz. . Measures 5 x 7.25 x 16 in. . Holds 475 cu. in./8L. Imported.