Billie reversible bikini bottom | agua
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The Billie Bottom in Agua is a reversible fixed thong bikini bottom, designed with high-cut sides and a curved waistband for a flattering fit. Inspired by the iconic bikini styles of the '80s and '90s, it offers a timeless look. One side features a lustrous shine, while the other showcases a sleek matte finish, giving you the flexibility to switch up your style with ease.
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- Reversible bikini bottom
Minimal coverage
V front
Handmade & double lined with sustainable regenerated nylon
Luxurious feel with UV protection & shape retention
Pictured with the Blair Top
Bust: 84cm / 33in.
Waist: 67cm / 26.5in.
Hips: 99cm / 39in.
Natalia (curled hair) wears size XS
Bust: 82cm / 32in.
Waist: 69cm / 27in.
Hips: 99cm / 39in.
This style runs true to size.
Returns Policy:
- We will gladly accept any full-priced item returned within 30 days of purchase for a store credit or refund (a flat fee of $4.95 will be deducted if you wish to choose the refund option) minus original shipping costs. Please note, items marked as sale or bought during a store wide sale are final and are not eligible for returns, exchanges, or refunds.
You can find more information on our shipping and returns policy here here.
Shipping Policy:
- Standard shipping - $4.95 (3-8 business days) or Free on orders over $100.
- Priority mail $5.95: 3-5 business days.
- Priority express $30: 1-2 business days.
Size guide
| XS | S | M | L | XL | XXL | |
|---|---|---|---|---|---|---|
| AUS/UK | 6 | 8 | 10 | 12 | 14 | 16 |
| CUP SIZE | A-B | B-C | D | DD | E | F |
| BUST | 77-82cm | 82-88cm | 88-94cm | 94-100cm | 100-106cm | 106-112cm |
| WAIST | 58-63cm | 63-69cm | 69-73cm | 73-79cm | 79-85cm | 85-91cm |
| HIP | 74-79cm | 79-85cm | 85-91cm | 91-97cm | 97-104cm | 104-112cm |
| BOTTOM | 86-91cm | 91-96cm | 96-101cm | 101-106cm | 106-111cm | 111-116cm |
| XS | S | M | L | XL | XXL | |
|---|---|---|---|---|---|---|
| EU | 34 | 36 | 38 | 40 | 42 | 44 |
| CUP SIZE | A-B | B-C | D | DD | E | F |
| BUST | 77-82cm | 82-88cm | 88-94cm | 94-100cm | 100-106cm | 106-112cm |
| WAIST | 58-63cm | 63-69cm | 69-73cm | 73-79cm | 79-85cm | 85-91cm |
| HIP | 74-79cm | 79-85cm | 85-91cm | 91-97cm | 97-104cm | 104-112cm |
| BOTTOM | 86-91cm | 91-96cm | 96-101cm | 101-106cm | 106-111cm | 111-116cm |
| XS | S | M | L | XL | XXL | |
|---|---|---|---|---|---|---|
| US | 2 | 4 | 6 | 8 | 10 | 12 |
| CUP SIZE | A-B | B-C | D | DD | E | F |
| BUST | 30.3in | 32.3in | 34.6in | 37.0in | 39.4in | 41.7in |
| WAIST | 22.8in | 24.8in | 27.2in | 28.7in | 31.1in | 33.5in |
| HIP | 29.1in | 31.1in | 33.5in | 35.8in | 38.2in | 40.9in |
| BOTTOM | 33.9in | 35.8in | 37.8in | 39.8in | 41.7in | 43.7in |
How to measure
For the most accurate measurements, it’s best to wear minimal clothing and keep the measuring tape is flush against the body. We recommend standing with your feet together and keeping the tape parallel to the ground, avoiding pulling it too tight.
If you find yourself between sizes, please check the specific description to check if it runs smaller or larger. For a more minimal look, consider sizing down. For more coverage, consider sizing up.
Bust
- Stand up straight with your arms relaxed at your sides.
- Please the measuring tape around the fullest part of your busy, ensuring it goes under you armpits and over the shoulder blades.
Waist
- Find the natural waistline, above the belly button and below the rib cage.
Hip
- Find the very top of your hip bone.
Bottom
- BottomFind the fullest part of the bottom.

- KFKathleen F.Verified BuyerSize Purchased SAge Range 18 - 24September 1, 2025Size Purchased SAge Range 18 - 24Rated 5 out of 5 starsgreat fit bottoms
love these, the color is so pretty :)
Was this helpful? - AMAngie M.Verified BuyerSize Purchased SAge Range 25 - 34July 30, 2025Size Purchased SAge Range 25 - 34Rated 5 out of 5 starsFabulous
Fits perfectly and has good coverage, material is high quality and my friends are always asking me where I got this bikini from
Was this helpful? - HHHaley H.Verified BuyerSize Purchased SAge Range 25 - 34July 17, 2025Size Purchased SAge Range 25 - 34Rated 5 out of 5 starsINCREDIBLE
Bottoms can be hard to shop for online, but these are definitely the best that I've found. The fabric and fit are so flattering and I love that they can be mixed and matched. The coverage is also perfect for a beach/lake/boat/pool day with friends.
Seriously, A+ on these bottoms.
Was this helpful? - GKGeorgia K.Verified BuyerSize Purchased XSAge Range 18 - 24June 11, 2025Size Purchased XSAge Range 18 - 24Rated 5 out of 5 starsexactly what i was looking for
great quality & the cheekiness i was looking for! VDM probably has the best reversible swimsuits i’ve ever found!
Was this helpful? - NPNicolette P.Verified BuyerSize Purchased SAge Range 25 - 34May 30, 2025Size Purchased SAge Range 25 - 34Rated 5 out of 5 starsBEST FITTING SWIMSUIT
These bottoms are insanely good. They are true to size and so flattering!
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