If you are wondering where to buy your envelopes? Look no further! The Envelope Company has a huge selection of standard size envelopes in stock ready to ship with the ability to customize any envelope you need. We are capable of manufacturing custom envelopes from size 2 1/4 x 2 1/2 to 10 x 13 open side and to a 13 x 16 open end. Buy direct from the manufacture any size envelope and save. Personalize with printing for a great mailing envelope.