FREE EXPRESS SHIPPING ON ORDERS OVER $199 AUD ($149 USD)*
We have a very useful size guide available for you, including a size generator. We also have our models' measurements (underbust, bust, waist, hips) displayed on each product page. However, if you have specific questions about your size please contact info@louswim.com.
Please note the FIO bikini top runs small so we recommend you view the information we have on the band size and maximum stretch to see what size will fit you best and whether you need to size up. For example if you are 71cm underbust usually you are a size XS but a size XS FIO top is 64cm band with 72cm at maximum stretch so we would recommend you size up to a size S.
Our swimsuits are catered to small chests which is 1-4 inch difference between your underbust and bust measurement.
E.g. 30" underbust and 31" bust (1" difference)
E.g. 28" underbust and 32" bust (4" difference)
If you are 5-6 inch difference, we recommend you sizing up one size.
E.g. 30" underbust and 36" bust (6" difference) we recommend sizing up from size S to size M.
Unfortunately our swimsuits are not flattering for chests with 7+ inch difference. That is what makes our swimsuits so special, they are genuinely designed with the small chested women in mind.
All our swimsuits are already designed specifically for small chests (those in the IBTC with 1-4 inch difference between your underbust and bust) so you do not need to size down just because you are concerned about the cup size. Please follow your underbust measurement for your size.
The only time we would recommend sizing down is if you prefer a snug fit or if the shoulder straps are not adjustable and you have a short torso.
Please allow up to 2 hours for your confirmation email to be received in your registered email address inbox. We recommend checking your Junk/Spam mail folder as well. If you do not receive a confirmation email within this time frame, simply contact info@louswim.com.
If an error message keeps occurring in your checkout process, more often than not there is a credit card problem, or a defect with the billing or shipping address you are trying to use. To fix this error, try re-formatting the names and addresses in your billing or shipping information. You can also try shopping from a new browser or using a different payment method such as PayPal. If the error message keeps re-occurring, please contact info@louswim.com.
After you place your order on louswim.com, a confirmation email will be sent to your email address once it has been processed. We recommend checking your Junk/Spam mail folder as well. If you do not receive a confirmation email within 24 hours, please contact info@louswim.com.
Generally we are unable to make manual changes, however if the order has not been shipped it may be possible. We process orders quickly, so changes cannot always be accommodated. Please immediately contact info@louswim.com with your change request details included in the email. Please note our customer care team works on a different time zone to some of our international customers.
What you may be seeing is an authorisation. This is a common bank practice handling credit card transactions to ensure sufficient funds and account authenticity. This authorisation will clear and you will see one charge for the order you have placed. Please note that your bank may take up to 48 hours to clear the authorisation. If you need help speeding up the process you can contact the issuing bank of your credit card.
Please only click the ‘Complete Order’ button once during checkout and allow this to finish processing to avoid duplicate orders being placed.
Tracking updates at times don’t reflect the exact location of your parcel. Please allow ample time for tracking to update as this may occur when the parcel reaches the delivery postal depot.
You will receive a confirmation email once your order has been shipped that contains your tracking information. If you have not received a shipping confirmation email, please check your Junk Mail or Spam folder.
Please go to our Shipping page for more information about delivery times.
Business days do not include weekends or national public holidays and the delivery time frame excludes delays caused during international custom’s processing.
Packages in most countries must be picked up from the local post office within 7 days of failed delivery. After this, they will be returned to sender.
Please inform us as soon as possible once you find out that your package has been returned to sender. We will re-ship your order immediately (if your items are in stock) or wait for your package to be returned before we re-ship it to you (if it is the last item in stock).
The free shipping offer will not be available under these circumstanced and you will be required to pay for the actual shipping cost that LOU Swim incurs in re-shipping the items to you.
Alternatively you can request for a store credit. The actual shipping cost incurred by LOU Swim to ship the items to you will be deducted from your store credit before it is issued to you.
There are no exchanges available on sale items displayed on our Sale page or items purchased with a discount code. All sale items are sold as final sale only.
Certainly! To process an exchange, please email us your order number at info@louswim.com and let us know what you would like to exchange for.
Please make sure to check your spam/junk folder for our reply emails. If you still have issues receiving emails from us, please contact us via Instagram message at @lou.swim.
What items are exchangeable?
Items must be:
What items are non-exchangeable?
We recommend you follow this to ensure you can wear your LOU Swim bikinis for many more years to come and help reduce fashion waste:
The LOU Swim newsletter notifies you of all of our latest arrivals, restocks, promotions, secret discount codes and other exclusive offers. We only send out goodies that you don’t want to miss out on!
As a member of the ITBTC I have NEVER been more confident in a swimsuit. Especially after have 3 kids. My breasts are never appealing in a swimsuit but this top is PERFECT. I followed the size guide and measured myself and it fits perfectly and pushes the girls up nicely without making it feel like I’m going to fall out. Seriously, couldn’t be happier with this too.
The Holly Bottoms fit perfectly and it’s soooo comfy! 10/10 recommend :)!
This top is phenomenal, the padding and the style fit great and gives me cleavage (??!! ME?!) it's definitely a bit more risqué than I usually wear but it's perfect for special occasions. My only gripe is that I brushed up against the stone poolside and it immediately snagged :(, so I guess be careful in this suit if you're actually going to go swimming.
Shipping was so fast! Love the push up, fabric is very high quality, and front tie is nice for adjusting. I wear a 34C/32D and went with a medium - fits good. All in all, worth the price. I ordered three.
Love the push up, fabric is very high quality, and front tie is nice for adjusting. I wear a 34C/32D and went with a medium - fits good. Shipping was also really quick.
Love the push up, fabric is very high quality, and front tie is nice for adjusting. I wear a 34C/32D and went with a medium - fits good.
I absolutely love this swimsuit! The fit is incredibly flattering, hugging all the right places while still being super comfortable. The material is high-quality—thick enough to feel supportive but still stretchy and breathable. I felt confident and stylish both at the pool and the beach. The color hasn’t faded after several washes. I’ve received so many compliments while wearing it. Definitely a must-have for anyone looking for a go-to swimsuit!
Perfect colour and fit for me. Finally feeling confident in a bikini top:))
I got the FIO top and HOLLY bottoms and they fit wonderfully! It has taken me forever to find a place that fits me and I came across Lou! I will definitely be ordering from here from now on! I love it!!
I bought the full Fio suit and I love it! The bottoms fit great and are so cute. And the Olympian blue color is lovely!
Love this swimsuit! It's flattering and a beautiful suit. The gold clasp is an elegant touch! I think I'm on my way to replacing all my swimwear with Lou :)
I love it!! For years, I've been hiding my small chest behind high-neck halter and bandeau-style bikini tops. Not anymore! This is the first time I've ever felt confident in a low cut bikini. I honestly can't believe how well it fits and flatters 🤩 Thank you for helping small chested women feel confident!
Initially I thought that I had purchased the wrong size in the Tori top, as I didn't get the oomph while wearing it, BUT after I figured out that I just needed to tie it better (check Louise's IG/TT videos for tips), it is AMAZING! So flattering and comfortable! I had pretty much given up on ever thinking that a bikini could give me cleavage until this. I ordered the set in black and wasn't sure if the black would be too slimming for the area I wanted to amplify but it wasn't. It really gives me confidence in being in a swimsuit - love it so much. Well-made, packaging is cute and shipping to Canada was also really fast.
This white FIO top is the best thing I ever put on myself. It fits perfectly, and the white color compliments my skin even now when I don't have tan yet. (Still winter) Good thing they wrote to order a size up, so I took L instead of M and it's perfect. Now I want more colors!!
Exactly what I was looking for in bottoms!! Flattering and cheeky in the back with great coverage still in the front. Highly recommend for anyone looking for a thong bottom!
Haven't received your tracking number? Tracking says package is stuck somewhere? Or that it's delivered but it's nowhere in sight?
Worry not! Just contact us at info@louswim.com and we will do our best to help you! Please let us know your order number.
We know small can be beautiful and sexy. Small can also be powerful!
Got a question? Just pop a message in the chat box below and she will respond as soon as she can! Other ways to contact her? Email at info@louswim.com or DM on Instagram: @lou.swim.
The best part about supporting a small business? We genuinely care!
Louise Chen treats every customer like a friend.
We want to make sure you love your purchase and enjoy the experience so don't be afraid to contact us (it's really just me) at info@louswim.com.