I've tried both the men's blue and these ladies black pants; they're identical except for the colour, packaging and the men's ones have a little tab on the back for fastening them up when used.
They are both a unisex shape, comfortable, discreet and absorb equally well.
I used to wear black boxer-briefs before my disability, so to have a black-colour pant option that fits guys too gives added confidence. I just have to ignore the female-targeted packaging!
Blokes; if you prefer black try these.
Ladies; if you prefer the blue try the men's ones too.
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TL;DR: The black ladies pants and the blue men's pants are essential identical products in different colours and both are suitable for both genders.