Low-Rise Bikini | Sienna
Low-Rise, Standard Bikini Leg Line with Moderate Seat Coverage
- Regular price
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$16.00 - Regular price
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$20.00 - Sale price
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$16.00
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This low-rise classic is your elevated everyday bikini. Light, breathable, and soft to the touch—it's made to move with you and disappear under clothes.
✓ OUR LOWEST RISE | Modern bikini cut for minimal show and maximum ease
✓ MODERATE SEAT COVERAGE | Light cheek coverage with a low-profile fit
✓ TENCEL™ MODAL + SPANDEX | Featherlight, super soft, and stretchy
✓ ELASTIC-FREE | Say goodbye to irritation and slipping—hello, all-day comfort
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FREE & EASY RETURNS OR EXCHANGES
Fit Matters. We’ve Got You.
Comfort and fit are everything, especially when it comes to bras+ undies. Helping you discover your next era of intimates is our jam, made easy for you with free returns and exchanges.
Returns of unwashed, unworn items with the tags on are accepted for 30 days and will be refunded to the original form of payment. See our Returns Policy for more details.
Still have questions? Not a problem!
For style suggestions take our Underwear Quiz
For sizing, check out our custom Measuring and Calculator
Still have questions? Shoot us an email at hi@iterationera.com and we can personally assist to ensure you're fitted perfectly!
underwear size chart in inches
Need to know how to measure your underwear size? Click Here!
| ITERATION SIZE | US DRESS SIZE | WAIST (INCHES) | HIPS (INCHES) |
|---|---|---|---|
| XS | 0 - 4 | 24" - 26" | 34" - 37" |
| S | 4 - 6 | 26" - 28" | 37" - 39" |
| M | 8 - 10 | 28" - 31" | 39" - 41" |
| L | 12 - 14 | 31" - 34" | 41" - 44" |
| XL | 16 - 18 | 34" - 37" | 44" - 47" |
| 1X | 18 - 20 | 37" - 41" | 47" - 51" |
| 2X | 20 - 22 | 41" - 45" | 51" - 55" |
| 3X | 22 - 24 | 45" - 49" | 55" - 60" |
If you're selecting the high rise style, pick the size where the measurement range falls closest to both of your measurements.
Don't see your size here? We continue to add sizes based on community feedback. Let us know what size you need by joining the community.
PRESS MENTIONS
- TGTrudy G.Verified BuyerReviewingLow-Rise Bikini | SiennaI recommend this productAge Range 35-44Size Purchased SRated 5 out of 5 starsFeb 27, 2025Love these undies!
These were clearly designed with comfort in mind, I have one in every colour and it makes me happy every time I get to pull one out of my undies drawer!
IiterationMar 3, 2025It makes us SO happy knowing our undies bring you joy every time you reach for them - that's exactly what we hoped for when we designed them, making comfort as our top priority. Your enthusiasm and support means the world to us!! 💜
- SPSally P.Verified BuyerReviewingLow-Rise Bikini | OnyxI recommend this productAge Range 45-54Size Purchased MRated 5 out of 5 starsMay 23, 2025Most comfortable underwear, ever.
After losing some weight, I needed a whole new everyday underwear wardrobe, and I bought almost all of it at Iteration, in several colors. The bikini-style cut is so flattering, with the center dip and pleat, but it offers the right amount of coverage. The material is so soft and breathable and non-restrictive, without becoming baggy or loose. They wash beautifully. They check all the boxes for me.
- HCHolly C.Verified BuyerReviewingLow-Rise Bikini | OnyxI recommend this productSize Purchased SRated 5 out of 5 starsFeb 27, 2025Love these
I have bought multiple pair. So incredibly soft and comfortable but yet I still feel sexy with the V front waist detail. They also are pretty seamless so they don’t show!
IiterationMar 3, 2025Holly, thank you so much for your incredible feedback! We're so thrilled to hear that you love them enough to buy multiple pairs. Thanks again!!
- MDMary D.Verified BuyerReviewingLow-Rise Bikini | SiennaI recommend this productAge Range 45-54Size Purchased MRated 5 out of 5 starsOct 12, 2024The v front
The crossover front that dips seriously snatches my waist in !!!! It may be an illusion but I’ll take it !!!! This color is such a beautiful neutral!!!!
- MJMelissa J. C.Verified BuyerReviewingLow-Rise Bikini | Pink SandI recommend this productAge Range 45-54Size Purchased XSRated 5 out of 5 starsNov 20, 2024My Favorite
I love these! So soft and comfortable! The best part is the lack of a panty line. I have undies that are supposed to not show, but they do. These are almost invisable! V-front is super flattering and they fit perfectly. I am between sizes and like to size down for these for a slightly tighter, stay in place fit. Their sizes are spot on to my measurements, the fabric is very stretchy, which is why I like to size down in these.