Best Sellers

Bikini Tops

Bikini Bottoms

Sets

Shop All

  • Woman wearing the Tulip Top in orange with long, adjustable body straps and push-up padding for enhanced bust support.
  • Woman wearing the Tulip Top in orange with adjustable multi-wear straps and push-up padding, smiling at the camera.
  • Woman wearing Tulip Top in orange with long adjustable straps and push-up padding, showcasing a stylish and supportive swimwear design from Flatbaby Swimwear.
  • Woman wearing Tulip Top in orange with adjustable, multi-wear straps, offering push-up support and a snug fit.
1 6

Tulip Top / Orange

Tulip Top / Orange

$89.00 AUD
$89.00 AUD
Sale Sold out
Taxes included.
Top Size
  • Sale: Get 25% off your 3rd item
  • Free AU shipping over $100
  • 14 Day Returns & Exchanges

Our Tulip top is eye-catching from every angle. It features long adjustable body straps that can be wrapped in multiple ways. The bust-enhancing and stylish design ensure you'll be turning heads wherever you go 🔥

Features:

  • FLATBABY push-up padding
  • No cup gaps
  • Wire-free for ultimate comfort & support
  • Adjustable body, neck & back strap
  • Multi-wear long body straps
  • Rose gold hardware
  • Snug fit recommended
  • 92% Polyester, 8% Spandex

Fit Guide

SIZE GUIDE (TOP)

It’s important to measure your underbust correctly. Measure around your body right under your bust where the bra band sits.  Ensure the tape is straight all the way around, exhale and pull firmly.

To achieve the best results with our swimwear, we recommend a snug fit (so size down if you're in between sizes). This ensures maximum support and a flattering push-up effect. The material will also stretch over time.

Our Size XS S M L
Underbust (cm) 70-74 75-79 80-84 85-89
Underbust (inch) 27.5-29 29.5-31 31.5-33 33.5-35
AU

10AA 10A 10B

 12AA 12A 12B 14AA 14A 14B 16AA 16A 16B
US/UK

32AA 32A 32B

 34AA 34A 34B 36AA 36A 36B 38AA 38A 38B

 

Need help figuring out your size? Drop us an email at contact@flatbabyswimwear.com

Please include the following details:

  • Product/s you wish to buy
  • Underbust, bra size, hips + waist measurements
  • Usual clothing size for tops and/or bottoms
  • Photo of yourself (if you want)

Model Information

Cassie
Wears size XS top & XS bottom
Bra size: 10B
Underbust: 73cm/28.7’
Waist: 69cm/27’
Hips: 79.5cm/31.3’
Usual size: AU 6/US 2


Product Care

Click here for our product care tips.

Shipping

Free AU shipping on orders above $100

Free International shipping on orders above $200AUD / NZ$170 / US$130 / CA$180 / GBP￡100 

All orders are dispatched within 3 business days.

To see shipping rates, click here.

Don't see your country? Email us at contact@flatbabyswimwear.com and we’ll try to make it happen!

Return Policy

We accept returns and exchanges in their original condition within 14 days from your delivery date.

Before returning your item/s, please ensure that it satisfies our return conditions found here.

Items marked "FINAL SALE" are final and cannot be returned or exchanged.

View full details

See the difference

Woman wearing the Lily Top in pink, a padded bikini top with underwire, adjustable straps, and rose gold trimmings, providing lift and support.

Lily Top / Pink

$89.00

Size:

$89.00

Woman wearing the Buttercup Top / Pink, a triangle bikini with push-up padding, adjustable neck and back straps, and rose gold hardware.

Buttercup Top / Pink

$89.00

Size:

$89.00

Woman in white Buttercup Top bikini, standing in a pool, showcasing FLATBABY push-up padding and adjustable straps for enhanced cleavage and comfort.

Buttercup Top / White

$89.00

Size:

$89.00

Woman wearing the Buttercup Top / Pink, a triangle bikini with push-up padding, adjustable neck and back straps, and rose gold hardware.

Buttercup Top / Pink

$89.00

Size:

$89.00

Woman modeling the Buttercup Top in black, a triangle bikini with push-up padding, adjustable straps, and rose gold hardware for enhanced cleavage.

Buttercup Top / Black

$89.00

Size:

$89.00

Woman wearing the Lily Top in Lilac, showcasing its supportive padding.

Lily Top / Lilac

$89.00

Size:

$89.00

Woman in white Buttercup Top bikini, standing in a pool, showcasing FLATBABY push-up padding and adjustable straps for enhanced cleavage and comfort.

Buttercup Top / White

$89.00

Size:

$89.00

Woman wearing the Tulip Top in orange with long, adjustable body straps and push-up padding for enhanced bust support.

Tulip Set / Orange

$142.20

Top Size:

Bottom Size:

$142.20

A woman modeling the Lily Top / Black, featuring sewn-in padding, underwire support, and rose gold trimmings, designed to enhance and lift the bust.

Lily Top / Black

$89.00

Size:

$89.00

Woman wearing the Lily Set in Emerald, featuring a supportive top with underwire and adjustable straps, paired with a cheeky, mid-rise, adjustable bottom.

Lily Set / Emerald

$142.20

Top Size:

Bottom Size:

$142.20

Woman wearing the Buttercup Top / Pink, a triangle bikini with push-up padding, adjustable neck and back straps, and rose gold hardware.

Buttercup Top / Pink

$89.00

Size:

$89.00

Woman wearing the Buttercup Top / Yellow, a push-up triangle bikini top with adjustable neck and back straps, and rose gold hardware.

Buttercup Top / Yellow

$89.00

Size:

$89.00

Woman wearing the Lily Top in pink, a padded bikini top with underwire, adjustable straps, and rose gold trimmings, providing lift and support.

Lily Top / Pink

$89.00

Size:

Woman wearing the Buttercup Top / Pink, a triangle bikini with push-up padding, adjustable neck and back straps, and rose gold hardware.

Buttercup Top / Pink

$89.00

Size:

Woman in white Buttercup Top bikini, standing in a pool, showcasing FLATBABY push-up padding and adjustable straps for enhanced cleavage and comfort.

Buttercup Top / White

$89.00

Size:

Woman wearing the Buttercup Top / Pink, a triangle bikini with push-up padding, adjustable neck and back straps, and rose gold hardware.

Buttercup Top / Pink

$89.00

Size:

Woman modeling the Buttercup Top in black, a triangle bikini with push-up padding, adjustable straps, and rose gold hardware for enhanced cleavage.

Buttercup Top / Black

$89.00

Size:

Woman wearing the Lily Top in Lilac, showcasing its supportive padding.

Lily Top / Lilac

$89.00

Size:

Woman in white Buttercup Top bikini, standing in a pool, showcasing FLATBABY push-up padding and adjustable straps for enhanced cleavage and comfort.

Buttercup Top / White

$89.00

Size:

Woman wearing the Tulip Top in orange with long, adjustable body straps and push-up padding for enhanced bust support.

Tulip Set / Orange

$142.20

Top Size:

Bottom Size:

A woman modeling the Lily Top / Black, featuring sewn-in padding, underwire support, and rose gold trimmings, designed to enhance and lift the bust.

Lily Top / Black

$89.00

Size:

Woman wearing the Lily Set in Emerald, featuring a supportive top with underwire and adjustable straps, paired with a cheeky, mid-rise, adjustable bottom.

Lily Set / Emerald

$142.20

Top Size:

Bottom Size:

Woman wearing the Buttercup Top / Pink, a triangle bikini with push-up padding, adjustable neck and back straps, and rose gold hardware.

Buttercup Top / Pink

$89.00

Size:

Woman wearing the Buttercup Top / Yellow, a push-up triangle bikini top with adjustable neck and back straps, and rose gold hardware.

Buttercup Top / Yellow

$89.00

Size:

  • Lift & Boost

    Our carefully engineered swimwear gives you an instant lift, enhancing your bust by up to 2 cup sizes, while still looking and feeling natural.

  • No Awkward Gaps

    Designed to flatter AA-B cups, our special shallow cups ensure a snug, gap-free fit. Expertly crafted and approved by the IBTC.

  • Super comfortable

    Your comfort is our top priority. We focus on little details like adjustable straps, soft fabric and sewn in padding - constantly supporting you while you’re having fun ☀️

  • First hand experience

    Say goodbye to brands that don't understand you. Our swimwear is designed by small-chested women who understand your needs better than anyone else. Embrace your beauty and feel empowered knowing that you're wearing something designed specifically for you.

Trust our customers

As someone who has struggled with body image my whole life, the little girl who decided she needed a boob job at 12 years old, who stared at her friends c cups and was always jealous how they always looked so good- GET THIS BIKINI. i have never felt so happy looking at my tatas in the mirror. im an A-small B cup with a wider chest and flat sternum and this bikini top has made me feel so sexy and happy with myself. i’ve literally never been so happy in a bikini top in my entire life in my senior age of 23. if you’re considering it- please do it. you will not regret it.

Jo K

Two words: game changer! Bikini shopping has been a nightmare for me. After 2 babies and explant surgery, my itty bittys were left deflated and everything gaped. This bikini lifts, supports and brings the girls up and in for maximum boobage, with no gaps! Holy grail!

Nienke C

Wow, for the first time, I’m excited to flaunt my chest this summer! 😍 I’ll definitely be buying again and highly recommend this shop to all the small-chested ladies—it’s a total game changer! 👏

Tania P

I had a boob job and after kids I decided to have them out not realising I’d be left with nothing. Being flat now and a bit broader then most I have been struggling to feel feminine in a bikini. But this actually makes me look like I have some cleavage and it’s top quality also. In love! 😍

Nina

I just bought Flatbaby swimmers and all I can say is oh my god. I don't know what sorcery this is, but the pair I purchased from Flat Baby.. the material and comfort is incredible. And when I look in the mirror at the side of my boobs, they don't look like a push up bikini.. my boobs look so natural and so real.... SORCERY!! My friend had bought the baby pink swimmers size XS and the cup was too small for me, so I bought S (I am a Bcup/C cup) and they were perfect. Can't wait to buy more designs and colours you've got yourself a dedicated customer forever!! 💖

Jacky B

Well where do I start. For 42 years I have never ever liked going to the beach or to the pool due to having itty bittys. I guess I just wanted to say thank you. Thank you for creating something for us girls. Instantly made me feel more confident and happy to go to the beach this summer.

Teneale R.

I just wanna say I got mine today. I am a 10AA/8A and it is amazing!! Thanks so much for making these. I was suspicious at first because I’ve tried so many push up bikinis that don’t sit properly. Even the ones that claim to be for small chests don’t work for me because of my small size. But this is 10/10. The quality was also much higher than I expected. I will be back for more colours and styles when I have $$ 😍❤️

Jodie

This is the first time I’m actually excited to wear a bikini, I bought the pink buttercup top and I can’t believe the difference it made in cleavage. I have never had swimwear that made such a noticeable difference it boosted my confidence straight away!

Felicity R

Finally feel comfortable in a bikini!!! Great quality too.

Gena C

Your bikini tops really are wizardry!! I think I stared at my chest in the mirror for a good 10 minutes because I have literally *never* seen cleavage on myself before until now, haha. Thank you for supporting the “IBTC” and I hope you go far with your small business!

Stella L

I love my new bikini! It fits nicely on and is so flattering. I can’t wait for some warm weather to finally wear it 😍

Victoria L

I have never had bikinis that make me sit so well!! They are the most flattering bikinis I own & I cannot wait for the warmer months to hit, thank you so much😍 will for sure be posting about them again, everyone needs a pair

Ebonye M

I love it! It definitely makes a difference!!

Bella M

I just bought this swimsuit and I love it. It’s SUCH good quality and really does make my boobs look great! The business owner also hand wrote a thank you note! Really made me understand how important shopping at small businesses is 💕

Lottie R

Great quality and very flattering. I’ve had a bilateral mastectomy and this bikini top still gives the impression of having boobs. So happy!

Melanie R

I’m so in love with the Lily swim suit. Since dropping fair amount of weight way to quick and loosing my boobs this swim suit has made me feel confident and comfortable to go back to the beach this summer. And the before service, helping choose sizing, fast to get orders shipped. Thank you so much 😍

Krystal L

Artboard-66
Artboard-66

Real Women, Real Results