With January’s price change, the Postal Service introduced several flat-rate product innovations, increasing convenience and adding value for commercial customers using Priority Mail and Express Mail services.

New to the flat-rate lineup:

The Priority Mail Legal Flat Rate Envelope measures 15-by-9.5 inches and allows customers to send legal-sized documents without folding. It’s available for both domestic and international mailing.

The Priority Mail Padded Flat Rate Envelope measures 12.5-by-9.5 inches and can be used for lightweight merchandise. It’s available for both domestic and international mailing. Previously available only to Commercial Plus customers, the envelope now is available to all Priority Mail customers.

The Priority Mail Legal and Padded Flat Rate Envelopes cost $4.95 for retail and Commercial Base customers and $4.90 for Commercial Plus customers. If a customer brings in a legal or padded flat rate envelope for payment at a retail counter, the $4.95 price will be charged.

Also making its debut this month is the Express Mail Legal Flat Rate Envelope, measuring 15-by-9.5 inches. It can be used to send legal-sized documents without folding and is available for both domestic and international mailing. It’s priced the same as the Express Mail Flat Rate Envelope and Express Mail International Flat Rate Envelope, respectively.