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Guides · Updated 2026-10-31

Nylon and Polyester Flags: How Synthetic Flags Are Retired

Most outdoor flags sold today are made of nylon or polyester rather than cotton. They hold up well in weather, but they create a practical problem at retirement time: synthetic fabrics do not burn the way cotton does.

The problem with burning synthetics

When nylon and polyester burn, they tend to melt and drip rather than burn cleanly to ash, and they can release smoke and fumes that are unpleasant and potentially harmful to breathe. Burning them in a backyard fire may also break local open-burning rules. For these reasons, many organizations do not burn synthetic flags, or they handle them separately.

How to tell what your flag is made of

Check the label, which usually lists the fabric. In general:

If there is no label, assume it may be synthetic and tell the organization when you drop it off.

Dignified alternatives

What not to do

Choosing your next flag

If retirement by burning matters to you, consider a cotton flag for occasional or indoor use. For year-round outdoor display, nylon or polyester usually lasts longer; just plan to retire it through an organization that accepts synthetics. Look for flags made in the U.S.A. if that matters to you; manufacturers usually state country of origin on the label.

The short version

Nylon and polyester melt and give off fumes when burned, so many organizations handle them differently. Give synthetic flags to a veterans' group that accepts them, or retire them by respectful burial. Check the label and call ahead.