Why do sweatshirts have that V stitch at the neckline?

Many sweatshirts have a V about 2 inches long stitched in the center of the neckline. Does it have any function, or is it purely an adornment?

If it’s an adornment, how did it get started? It’s so common.

It helps to “anchor” the collar and keep it’s shape. The neck of a sweatshirt is not symmetrical - you want it lower in the front and higher in the back, and you don’t want it to stretch into a different shape over time.

I’m sure there are other ways to achieve this, but it isn’t purely aesthetic.

That’s interesting; I wouldn’t have thought of that.

I did notice it on one of my crew neck sweaters, but I have many more that don’t have it. I wonder why it’s so much more common on sweatshirts than other garments.