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Diana Swim Set - Twilight

Sale price£89.99

Size chart

Below you will find our size charts to help you to select a size.


We would recommend taking your measurements (bust and waist), using our instructions on how to measure yourself, and compare these to our size chart below. All measurements are in inches.

We would recommend sizing up if you are in between sizes (or at the very top of a size bracket) or require a looser or more modest fit.

Our ECONYL® swimsuits tend to feel tighter due to the compressive nature of the fabric, so we would recommend sizing up for comfort. You can find details of the fabric on the product page.

Lanuuk Size UK size EUR size Bust (inches) Waist (inches) Hip (inches) Sleeve (inches) Bottoms*
XXS 4-6 32-34 28-30 22-24 30-32 21 XXS-S**
XS 6-8 34-36 30-32 24-26 32-36 21
S 8-10 36-38 32-34 26-28 36-38 22
M 10-12 38-40 34-37 28-31 38-40 22 M
L 12-14 40-42 37-39 31-34 40-43 23 L
XL 14-16 42-44 39-41 34-36 43-45 23 XL
XXL 16-18 44-46 41-43 36-38 45-47 23 XXL
XXXL 18-20 46-48 43-46 38-41 47-50 23 XXXL

*Swim Bottoms are paired with the corresponding size of swim dress

**One-size Swim Bottoms covers sizes XXS-S

The above size chart is given as a guide only and provides approximate measurements for a comfortable fit. If you prefer a looser or more modest fit, or you are in-between sizes, please select a size up.


We would recommend taking your child's height measurement (top of the head to heel), and comparing this to our size chart below. All measurements are in inches (aside from height which is given in cm).

Lanuuk Size

Ages (Years)*

Guide Height

Back Neck to Center Crotch

Length of Swim Tights**































*These are the recommended ages in years (inclusive) that this size will cover. For ages 14+ we would recommend selecting a size XXS-S from our adult Swimwear Collections, depending on your child's size. Please consult the above adult size chart for guidance on our adult Swimwear sizing.

**Swim Tights for ages 2-9 are intended to be cropped, falling between the calf and the ankle (as per the photos on the product page). Swim Tights for ages 10-13 are full length to the ankle.

If you have any questions about sizing, please send an email to and we are always happy to help!


Customer Reviews

Customer Reviews

Based on 6 reviews
Diana Set in Twilight

This is the best modest swimsuit I own! The fit was perfect and the ruffle design covered the chest area well, didn’t feel too tight which is an issue I have with other swimsuit brands. Fabric was very quick drying and didn’t feel hot at all. The tights were the perfect length. For reference I am 5’2 and got a size M since I was in between sizes on the size chart. The best feature is the buttons on the inside to attach the leggings and top together and prevent it from riding up in the water, which I loved. Definitely recommend!


So comfortable and a beautiful fit. Very elegant looking modest swimwear

100% recommend!

I got the Diana Swimsuit in Twilight in small. I’ve worn it several times now and can say the quality is great, it washes well too and quickly dries.
The top cover 1/3 of my thigh (almost mid thigh) and the leggings just about reach my ankles. (Would have preferred longer leggings and longer top tbh. In future I would get a medium to size up for length)
The top has fastenings on the inside, so you can attach the top to the sides of the leggings so it doesn’t ride up. I’ve been on slides and jumped in pools and still had no problems with it riding up!
You do have to wear a padded bra/bikini under the top but that wasn’t an issue.
For reference: I’m 163cm, slim built, usually size 8 (S) UK

Got 2 sets

I was excited to try a new modest brand, I ordered the Serena set in burgundy and the Diana set in twilight. I tried them out on my trip to Mexico and I was very impressed. At the end of my stay, I saw another person wearing an olive set and the color was amazing. I had many compliments from people who loved the coverage though they aren't hijabi or considered modest swimwear before. The SPF protection was an extra perk that many appreciated. The material is light and comfortable to move around in while the high neck is soft.

Serena set:
1. It's a body suit model
2. bra padding is very convenient
3. the skirt is longer from the back for extra coverage.

Diana set:
1. there is no build in bra padding, but wearing a bikini underneath was still very comfortable
2. It's a dress and pants model, but the dress has two latches on the side that attach to the pants to keep the dress in place while swimming.

Hoping to get a third set this summer!

Diana in twilight blue

Love the fit and feel of this swimsuit. The length is perfect for me (about mid-thigh and I’m 162 cm). I sized up to large to get a more modest fit but I’m usually a medium. The swimsuit stays on while your swimming and dries up fast afterwards.

Diana Swim Set - Twilight Lanuuk Modest Swimwear Burkini
Diana Swim Set - Twilight Sale price£89.99

Worldwide shipping

We ship worldwide and offer different shipping options for each region.

Flexible Returns

We offer a flexible 14 day return policy if you are not completely satisfied with your purchase.

Customer service

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