Alternate Future Variant Badge

The Alternate Future Variant combadge is a uniform part used in several episodes of Star Trek: The Next Generation, Star Trek: Deep Space Nine,  and Star Trek: Voyager to represent the Starfleet insigni in a potential future reality (in the late-24th century). A badge similar to it would eventually be used as part of the Starfleet 2399 Uniform.

It is available as a Lifetime Subscription reward or as part of the All Good Things Uniform for 550.