Sorry to step in.
Let me clarify one thing. As we had clarified at the stage of producing APP samples, for the combos which use PFP(white) as ground fabric, they are fuorescent because we will add fluorescent agent when we produce PFP; as for the combos which use dyed base color fabric as ground fabric, they should be fluorescence-free because we will not add fluorescent agent when we dye base color.
As per our colorist's feedback, Lot#150408645 (F421A01OW--dye base color) was slightly stained by fluorescent agent. It's not obvious if you review only this fabric under UV light. But if you use another fabric of F421A01OW from other lots which is fluorescence-free for comparison , you can find it's slightly fluorescent.
As for F421A55CGR, it should be fluorescent because it uses PFP as ground fabric. Pls be kindly noted