Star of the show is the bellybutton
Bellybutton showing in crop tops & any type of blue or black jeans is the most flattering one, more than in other outfits that involves the crop top.
When it comes to the crop top, my favorite bottom to pair with the crop top would be the jeans of blue or black.
If the jeans is paired with a belt, it further accessorize the chic look.
Meanwhile, if pair with a coat or a jacket, the jacket & coat has to be left unzipped, unbuttoned, definitely open in order to reveal the crop top that displays the bellybutton. Remember, the bellybutton is the star of the show for this fashion. Cannot leave the bellybutton hidden.
Low waist jeans is highly preferred in this collection.