Will the new Nike, White Sports band work with my older Apple Watch?

I have an Apple Watch Series 2 (I think) 38 mm. I want the new Nike, White Sports band but it shows only available in 40 and 44 mm. Will this band work with my older Apple Watch? I am not sure if the 40 mm is the S/M band and the 44 is the M/L band...or if it refers to the face of the watch?

[Re-Titled by Host]