This bikini top is AMAZING!!! I am VERY large busted, with a small rib cage. It's difficult to find tops that fit. I purchased both sizes 34DDD and 34DD, and here's my comparison of the 2 in case someone is trying to determine which size to buy: I normally wear a 34DDD in Soma brand. The 34DDD of this bikini top was slightly large in the cup, but VERY well fitting as far as the width of the cups and the band. There are also extra slots in the back for the hook to go into to make the band slightly tighter if necessary. The cups themselves didn't feel stuffed, but were thick so I didn't have any show through when I was cold. This top was also perfect to wear under rash guards and tank tops, and held things in place just as if I were wearing a bra. Since the cups were slightly large around the top of the cups, when I did intense swimming, I felt like I was bouncing around a slight much for my comfort (though NOTHING popped out or was showing, which was amazing!). Therefore, I also purchased a 34DD to see how it compared. 34DD: The 34DD is also wonderful! Here's the main difference though if you're on the fence. The band of the DD is not as wide as the DDD. If you are inbetween sizes, the DDD has a wider band and the boning on the sides of the bust (near the armpits) of the DDD is stronger and taller on the DDD than on the DD. All in all, the DD just feels smaller and more flimsy. However, it is still of the same quality, and the cups are just as good. I used the DD more underneath a tight rash guard where I had something additional to hold everything in place. Just like the DDD, the DD also has extra loops in the back to make the band tighter if needed. The cups for the DD cut in a bit smaller on the top, so there was no gapping and it didn't look too big, and, just like the DDD, I didn't have any bits of me spilling out! I ended up keeping BOTH swim tops, because let's face it, it is EXTREMELY difficult to find good swim tops for large busts! This top is very well made, good quality, and has support like a bra. It also hang dries nicely. BONUS: On both tops, the cups and band was so well made and fit so well that I didn't need to tighten the neck tie super tight, which meant no headaches from using my neck to hold up the weight of the "girls"! You big busted ladies know what I mean. Lol ;) The only negative about this top if that the hook in the back hooks in so well that it is difficult to get out by yourself. There were many times where I had to ask for assistance from someone else to help get this unhooked. But, I don't care. That's just a small inconvenience for a garment that fits fabulously. When other colors are back in stock in my size, I'm going to order more!