Siren Sweetheart Bikini Top - Black Rib


Color: Black Rib
📏Size Chart
Surf’s up - this sweetheart is ready for your next sun-soaked adventure. This sporty long-sleeved bikini top is perfect for those sunny days when your sea errands require a little extra coverage. And yes, it has thumbholes (hello sun protection!)
Features + Fit

• Thumbholes
• Long-sleeved
• Sweetheart neckline
• Big, dramatic and adjustable bow
• Silicone-lined bottom band to keep everything in place
• Double-lined for no see-through moments
• Clean finish fabric for a no-pinch edge
• Gold logo hardware

Model Info
Model: Kaylee Height: 5'4" Bust: 31" Bra: 34B Waist: 25" Hips: 36" Torso: 58.8" Kaylee is wearing size XS
Model: Arlene Height: 5'9" Bust: 44" Bra: 38DD Waist: 37" Hips: 48 ½" Torso: 69" Arlene is wearing size 1X
Fabric + Care

Main (Rib):
Bow (Smooth): 74%nylon/26%spandex;
Inner Liner: 74%nylon/26%spandex;

Care: Hand wash cold then lay flat to dry

Shipping + Returns

FREE SHIPPING in the U.S. on any order over $100!

Order amount: $0 - $99.99:
$7.95 U.S. shipping (+$2 for yoga mats or bags)
$13.95 International shipping*

Order amount: $100+:
FREE U.S. shipping
$19.95 International shipping*

*International shipping charges do not include customs and taxes which may apply in your country.

DELIVERY TIME: Please allow 5-8 days for delivery of your order if in the U.S. Please allow 2-5 weeks for international orders to arrive depending on each country's customs inspection and postal delivery practices.

RETURNS: We accept returns (excluding Final Sale items) within 30 days of purchase in unworn, unwashed condition with all tags and adhesive liners intact. U.S. returns will have a $5.95 return fee applied that covers the cost of shipping your return back, as we will be providing the shipping label. Your initial shipping charges will not be refunded, only the purchase price of the items you're returning will be refunded. For International returns, you are responsible for any shipping charges spent to mail your return back.

EXCHANGES: We offer free U.S. exchanges within 30 days of purchase to help you get your perfect fit (excluding Final Sale items). Items must be in unworn, unwashed condition with all tags and adhesive liners intact. Just select the exchange option and pick your new item from the available options in the drop-down menu. We offer exchanges for size, color, and style within that item's product category. At this time we are not able to offer exchanges for international orders as those must be returned.

Customer Reviews

Based on 45 reviews
Sexy and cute bikini top!

I looove this bikini top! Good coverage for my arms but also emphasizes boobs. I wear M and was wondering if I should size up based on the reviews, but I think the size may have been adjusted because M fit me perfectly. The sleeves were a bit long but that's fine. The ribbon in the back is really pretty. It's good quality but the only thing is since the fabric is kind of thick, it doesn't dry as fast and is wet for a long time. Overall very happy with this design and I'll be wearing it all the time!

Thank you for your review! We're glad you love the bikini top! It looks fabulous on you!

NOT for small band large bust girls :(

First I wanna say that I LOVE the construction, fabric, and the style of this piece. It’s definitely high quality and the modesty aspect is what ultimately convinced me to buy it. I know I can’t fit S/M/L swim or underwear but I still took a chance because it was such a cute top. Well my bra size is 32F, and I bought the medium. Same issue as other clothing — the “band” area is too big for my rib cage and the bust was comically tiny. I might as well have been wearing one of those triangle string bikinis haha. I really want a version of this that’s either bra sized or like a halter top with a chest cutout? I’m not sure what the solution would be but yeah, if you’re a specialty size girlie like me that wants to be modest this won’t work :’). I’m gonna keep it as a gift for my sister though because I love it so much

Thank you for your review! We'll take note of your feedback

Needs More Cup Sizes!

Unfortunately, this is my first disappointment with Popflex and I wanted to love it so much. I am a 34D and all my measurements match the M size according to their chart. I bought size M and there was a lot of spillover and it created a muffintop bust which was not flattering from the sides. I am afraid a L will be too big as the M fit everything else perfectly, so I am just going to try and return this for now. If you guys are planning on expanding this line please add more cup sizes! :)

Thank you for your review. We'll take note of your feedback

Jessica Young
So Pretty

This top is so pretty! I wear a 34E and the size Mermaid (M) is perfect 🎯

Thank you so much for your review and we're glad that you liked it!

Jamie Smothers
Siren Top

I love this top so much! The large fit me everywhere except for the bust so I’m hoping the XL fits the same with a bigger bust. Fingers crossed. I get it on the 20th🥰

Thank you for your review! We hope you find the perfect fit!

Penn Favour
Definitely needs more cup sizes

Absolutely love it but the cup size doesn’t workout for me. Got a large and everything fits perfectly except the bust.🥺🥺

Thank you for sharing your review... You can return or exchange the item if you decide not to keep it. Just make sure you check out the help center to help guide you through the process.