An inflatable fabrics and an air-bag

The present invention relates to an inflatable double-layered fabric, including an inflating part having gas inflatability; a non-inflating part supporting the inflating part; and a co-woven part constituting a boundary between the inflating part and the non-inflating part, wherein the inflating part is composed of two separated fabric layers, and the non-inflating part includes a stepwise co-woven weave that is co-woven stepwise and alternately, and the weave of the co-woven part includes a 2X2 weave, a 3X3 weave, a stain weave, a partially co-woven weave of two separated fabric layers, or a mixed weave of at least one thereof, which is co-woven with 13 or more yarns in at least one direction.