Originally Posted by Willravel

I believe the genesis of that particular symbol is in the t-shirt company Stussy, which was incredibly popular in the 90s (along with Mossimo). While the normal Stussy logo looked like this:

The graffiti resurgence meant that "urban" clothing producers were trying to capitalize on different styles commonly associated with graffiti. One such common style was the "S" that appears like you've drawn it. I remember being in maybe 3rd or 4th grade when I saw that "S" on a Stussy shirt.