A unique blend of waterproof DWR-coated cotton and ripstop that’s soft, warm and lightweight — as well as dirt and odor-resistant. If you're settling in to a campsite for the night, it’s designed to make a great travel pillow, too. Just fold it into itself, zip it up, and get comfy. If you're just heading to the park for some lunch, it'll act as a spill-proof picnic blanket.