The Outdoor Research Zip Sacks are excellent for storing a large quantity of small items without restricting access. A ripstop nylon body with bound seams lends strength and durability to the parts of the Zip sack that need it most, while silicone-coated ripstop nylon sidewalls keep weight and bulk to a minimum. The water-resistant top zipper provides access to all of the contents and keeps weather out. Webbing handles and Hypalon pull tabs make the OR Zip Sacks easy to operate. Grab a fresh pair of socks, a clean shirt, or a warm winter hat without digging through a deep stuff sack in the middle of the trail with the Outdoor Research Zip Sacks.