Here's what other sites are saying:
This is the perfect ultralight, go-anywhere pack to keep in your car, purse or travel luggage. Weighing in at less than 3 ounces, it packs down into its own stuff sack that's small enough to fit in the palm of your hand. Versatile enough for any situation where you might need a little extra carrying capacity. Made from lightweight, water-repellent nylon. Stuff sack is conveniently sewn in so you'll never lose it. Full zipper. Imported. Dimensions 18"L x 10"W x 7"H. Packed size 3" x 4".