With a folding handle that locks in two places, a collapsible, silicone body which expands from an easy-packing 1.7" high to a generous 22 fl. oz. capacity and a reduced weight, GSI has perfected a design original, finally making it accessible to all. Sure-sealing lid made of Infinity Clear Polypropylene screws into the rim of the mug to keep your meals in and the outdoors out. Perfectly-suited to rehydrating and eating.