Our bikini bundles contain 20 brand new, unused swimwear separates. These bundles are prepackaged and can't be customized. You can select your preferred size which means the majority of the pieces will be in that size. Please note while we do try to add a balanced variety not all bundles are exactly the same so styles, colors, sizes as well as the mixture of tops/bottoms will vary. Either way at $4-5 per piece, these pieces are practically free! All bundle sales are final and we can't offer returns or exchanges on bundles or individual pieces within the bundles.