Stuff sacks can stuff it. The Granite Gear Zipp Sack is an evolved stuff sack, utilizing a wide opening zipper to give you access to the goods. The Zipp Sack's titular zip is a heavy YKK zipper that, when combined with the sack's 210D nylon, laughs off the stress of all the junk you've stuffed on board. A grab handle makes the Zipp Sack easy to carry and toss about, and its squarish shape makes it easy to pack and stack. *Assorted colors.