Are priority mail envelopes waterproof

According to the United States Postal Service (USPS), Priority Mail envelopes are not waterproof. They are designed to be durable and protect against minor scratches and scuffs, but they are not designed to withstand exposure to water or moisture.

In fact, the USPS specifically states that Priority Mail envelopes are not suitable for mailing items that are wet, damp, or exposed to water. If you need to mail an item that is wet or exposed to water, you should use a waterproof or water-resistant envelope or package.

That being said, some Priority Mail envelopes may have a water-resistant coating or treatment, but this is not a guarantee and should not be relied upon as a means of protecting against water damage.

If you need to mail an item that requires protection against water or moisture, you may want to consider using a waterproof or water-resistant envelope or package specifically designed for this purpose. Some options include:

It's always a good idea to check the specifications and features of the envelope or package you plan to use to ensure it meets your needs and provides the level of protection you require.