The size of the mailing bags should not be a hindrance for transporting valuables to your near and dear ones. For your convenience, there are large postage bags that are ideal for gifts, jewelry, clothing, and other valuables. The large postage bags that we have in store are perfect to carry all these valuables. These large bags ensure security of the items that are sent through these. The Postal departments approve the imperial sized bags the material used for making these are weatherproof and have three layers. You can get these bags in different colors and a strip of adhesive seals them tightly.