Guys I found such a great dupe that I just had to share! I have one of the Free People Dani Swing tanks that I picked up on sale (even on sale it was around $14. I was browsing on Wet Seal and came across these Relaxation Tanks that look very similar, and they are $5!! They have it in black and mocha.
Also Wet Seal is having a sale for July 4th with FREE SHIPPING and you can get 10% off with code TAKE10 which drops these guys down to $9 for two!! Sizes are going quick so get them fast!!!