Personally I love the loose-fitting crop top trend. Especially the ones with low cut armholes like this one. Why? I'm not entirely sure myself. Maybe its because it makes me think of happy summer thoughts. More likely though, I think its the added versatility. You can punch it up with a colourful bandeau or bustier underneath that keeps it fun, flirty, and still a bit more conservative (as conservative as a loose-fitting crop top can be really). If you really are uncomfortable with showing off some midriff or semi-side-boob, opt for a cardigan or light sweater over top of it. Of course there's the alternative for the more bold and risque, you could let some skin show and just wear a bra or bikini top underneath. For added effect (and to make it look like your underthings are showing intentionally) make it a bright coloured or printed bra/bikini/bandeau/whatever you like. Or make sure it has some sort of detailing that makes it look deliberate. This, however is not optional. You must wear SOMETHING underneath. Unsupported and overexposed is not a good look.
This top becomes part of an easy classic look with a pair of jeans (I like coloured for summer, but classic jeans work just as well) and some killer kicks. Rock this look, wear this top and be the envy of every girl in Hyrule.