Insulated shipping bags

An insulated shipping and/or storage bag having a bottom, walls, and an opening generally opposite the bottom, wherein the bag is configurable between a bag configuration and a free standing configuration capable of maintaining a supporting shape when placed on a surface, the bag comprising:

• an outer layer;
• an intermediate layer, said intermediate layer being made from an insulating batt of single sheet of material having a generally rectangular shape with cut outs at each of four corners thereof and opposing cut outs generally centrally along opposite side edges of said sheet of material so as to form a middle portion between two side portions each having an end portion on an end opposite said middle portion, said cut outs enabling a free standing configuration whereby said intermediate layer is folded centrally thereof so that said middle portion becomes the bottom, said side portions become the walls, and said end portions cover the opening of the bag and whereby said intermediate layer continuously extends along the bottom and walls and covers the opening of the free-standing configuration of the bag without overlap of said intermediate layer;
• and
• an inner layer that is configured to form an article receiving pouch, said inner layer including a cuff in which said end portions of said intermediate layer are received to thereby secure said intermediate layer to said inner layer and to create a seal separating said intermediate layer from the interior of the bag, wherein in the free standing configuration of the bag, said cuff extends over said end portions and along at least a portion of an outer surface of said intermediate layer.