feather in (one's) cap

An accomplishment or achievement that one takes pride in. If this clinical trial is successful, it will be a real feather in her cap. I can't wait until I'm named valedictorian— it's such a feather in my cap!

Common Names:

Name	Pronounced	Usage
Madeleine	['mædəlin]
Jairus	-	Biblical
Zeru	-	Basque
Dobbins	['dɔbinz]
Maximilian	mahk-see-MEE-lee-ahn (German), mak-si-MIL-ee-ən (English), mak-si-MIL-yən (English)	German, English, Swedish, Norwegian, Danish
Davis	DAY-vis	English