I made both the top and bottom of this one (though the top was made 8 years ago and then renovated this year).
But as you can see from the bottom, I ran out of this fabric I have had for 9 years and knew I could not find it again, so I made the back navy lycra. (The panty is half and half too.)
On this next one, I purchased the top (easier this way) and made the bottom when I could not find a matching bottom after swim suit season had passed.