It's such a bad costume.
I don't really have a thing against skin - like I think Maddy Pryor and Psylockes costumes aren't great and a bit overtly sexual, but I can accept them as superhero costumes. Likewise I often wish Namor would just put a shirt on, but I guess that's kind of his deal.
That Sue costume is just terrible though - the '4' boob window AND the belly window, with the collar, and then the bare arms, gloves, and thigh highs ... it's just completely non-sensical. It's like all the places a rational person would cover, aren't, and then all these ancillary spots are ... so weird.