x2 basically means I agree with the post above me. Like saying ditto.
Some hens just have big floppy combs. Usually it's seen in larger combed breeds like leghorns, Andalusians, etc. it's not really common in red birds, and she really doesn't look like she has any leghorn blood in her. She looks like a hatchery Rhode Island red or a production red, which is basically a hatchery generic red bird who lays up a storm but isn't exactly a Rhode Island or a New Hampshire.
And she's a girl, large comb or not! Actually, a floppy comp is usually a sign of a hen, roosters combs stand up straight no matter how huge they get.
She's a pretty, healthy looking hen!