Mens Suit question - what is this called??

The collar on this blazer has this little flap thing that extends out and then you can flip the collar up and button it... is there a technical name for this?

I've been googling but using the words " blazer flap" on google have not been very helpful haha! Tried looking at some other listings of this jacket, but no one mentions it, but I feel like it's a cool little feature and I wanted to note it in the listing!

Thanks in advance for any help!

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