The 'S' stands for 'stitching' - as in contrast stitching - which is what you get with the 104S.
The same great snapback trucker that you're used to, now with a little extra.
KEY FEATURES: Snapback | Pro-stitched finish | Contrast stitching
CROWN: Mid-Profile, Pro-Model
VISOR: Curved
CLOSURE: Snapback
FABRIC: Cotton Blend, Trucker Mesh