LATE-SUMMER RESTOCK
DOTS RETURN!
Our fastest-selling print is back by demand—available in Rio + Nalo.
Island Icons
HAWAIIAN PRINTS RESTOCKED
Our most-requested tropical print—back now in black and cream.
Subtle Elegance
SOLANA RIO IS BACK
The lace set you've been patiently waiting to restock.
Bold & Classic
BLUE STRIPES RETURN FOR FALL
Crisp, versatile, and perfect for the shift of seasons.
statement-making
THE PERFECT PAISLEY
Our hand-drawn favorite that sold out fast—back now in Rio + Nalo.
Feminine & Flirty
THE BOWS REVIVAL
Our best-selling set is restocked again in Cream, Cherry & Chocolate, just for you.
Bronze is Back for Fall
Let customers speak for us
Everywhere you see is thongs. This bottom gives you coverage and I want to buy 15!!! If you need to be with family this bottom is for you (especially if you have a dump truck lol)
Perfect!!
I feel so good in this bikini I’ve been wearing it all summer long and it’s my favourite. It’s so flattering and pairs perfectly with my vintage Americana aesthetic.
I've had my razor for about two years now and it just took an awful plummet and broke. I've dropped it a few times but not from as far. Things happen...but here I am ordering a replacement! Cannot wait to have it back. I temporarily used my husband's razor and it's just not the same :(
seriously get this bathing suit, and the matching bottoms. i am 5'1 and about 147 pounds and i got a size medium and it fits perfectly. i feel so confident in this suit!
I have been eyeing this set and this brand overall for so long. I finally committed after over a year (lol) and am so happy with my purchase.
Fits beautifully and amazing quality ! Will be buying more.
This is my fav SS top by far. It's comfy, flirty, & so so cute <3
The fruit print is adorable and so fun for summer. 🍒🍋🍓 The fit is super flattering and adjustable, which makes it comfy and easy to wear. I feel confident and cute every time I wear it – definitely one of my faves from Sienna Swim! 🍍☀️
Even better in person. Absolutely stunning!
I loooove this one piece, the fabric is so soft and comfortable, and it is very flattering on my body type. This is my 13th bathingsuit ive purchased from Sienna :)
First time buying a swimsuit and I love it soo muchhh Definitely buying another swimsuit from here again
I absolutely love the fit of the swimming suit! I live on Oahu Hawaii, so I was able to try these suits on in person before ordering in the one I want and color I wanted and the fabric is everything. The color is everything I’m obsessed!!
These are the first pair of bottoms that I've FINALLY found that I love. They hug in the right places. They're great quality. They are a little more than cheeky, I would say they're pretty much a thong. If you're into that, these are for you!
What a unique swimsuit design! I love that you can still get a good tan on days you may be wanting a little more coverage in the belly area.
Now the swimsuit aside, let’s also talk packaging… I felt like an influencer receiving PR. It was so cute and personalized !!! Definitely ordering from Miss Sienna again soon.
as seen in
YOUR INSIDER ACCESS STARTS HERE
Sign up for SMS and enjoy free standard shipping on your first order. Sign up now.
Get early access to new collections, limited restocks, and exclusive drops before anyone else. Join the list.
From VIP-only discounts to surprise offers, our SMS insiders get more — straight to their phone. Get the perks here.