These Ultralight Puffer Pouches are constructed from a single piece of 1.1oz silicone impregnated ripstop nylon. Loops on both ends allow them to be attached to packs. Pleated design allows these slim pouches to expand to accommodate all kinds of gear and clothing. Large: 12" x 8" x 5", 0.7 oz. Medium: 9" x 6" x 3", 0.5 oz. Small: 4" x 5" x 2", 0.3 oz. Made in USA