What is a bubble mailer considered usps

According to the United States Postal Service (USPS), a bubble mailer is considered a type of "Flat" mailpiece.

Here's what the USPS says about bubble mailers:

• A bubble mailer is a type of envelope made of a flexible material, such as plastic or paper, with air-filled bubbles or pockets to cushion and protect the contents.
• Bubble mailers are considered "Flats" because they are flat and rectangular in shape, and are not folded or creased.
• As a Flat, bubble mailers are subject to the same rates and regulations as other Flat mailpieces, such as catalogs, brochures, and other types of printed matter.

Here are some key characteristics of bubble mailers that affect their USPS classification:

• Weight: Bubble mailers are typically lightweight, with a maximum weight of 13 ounces (369 grams) for First-Class Mail and 70 pounds (31.8 kilograms) for Priority Mail.
• Size: Bubble mailers can be any size, but they must be rectangular in shape and not exceed 12 inches (30.5 cm) in length, 15 inches (38.1 cm) in width, or 3/4 inch (1.9 cm) in thickness.
• Content: Bubble mailers can contain a wide range of items, including documents, merchandise, and other types of mailpieces.

When sending a bubble mailer through the USPS, you'll need to affix the correct postage and follow the same guidelines as for other Flat mailpieces.