An envelope package including a plurality of generally aligned envelopes, the plurality of envelopes being compressed together. The package further includes a generally non-elastic band extending around the plurality of compressed envelopes and retaining the envelopes in a state of compression. The plurality of envelopes exert an expansion force of at least about ½ pound such that the plurality of envelopes are sufficiently compressed to generally seal ambient air out of the plurality of envelopes to thereby reduce absorption of moisture and warpage thereof.