How about this for an impressive collection of Avengers themed swimsuits. We have a very traditional looking Thor (short cloak makes sense if you want to actually swim in this). Captain America has a very 40′s feel to the whole costume. Iron Man has all that intricate detail and of course Black Widow has the sexy hourglass shaping.
All the costumes were designed and hand made by Olivia Mears who apparently has some ideas for a Loki one and also some other geek inspired swimsuits.