Railay Bikini - Black - SIN Beachwear
Railay Bikini - Black - SIN Beachwear

Railay Bikini - Black

Regular price £30.00 GBP Save £0.00 GBP
Tax included. Shipping calculated at checkout.

Only 4896 items in stock!

The Railay Bikini set is part of our Naeco collection. On reflection Naeco spells Ocean. Ocean is where this minimalist, classic, yet modern bikini swimsuit belongs. Railay is a much loved beach on the coast Thailand. The bold colours give off a real strong vibe while the high waist design is a current appeal. 

A real go to this summer, or winter if you are visiting the Asian shores.

Size guide


  • Solid colour
  • Underwire support 
  • Tie up at the back
  • Push up look
  • Polyester
  • Regular wash 
  • Hang dry

Coronavirus Delays: 

Due to the recent global pandemic of coronavirus, many shipping carriers are experiencing delays in areas affected. This is being enforced by global government protocol. Affected countries have also experienced delays through customs. Many orders  are currently being shipped directly from our manufacturer in China and Europe for the fastest delivery possible. 

We guarantee all orders will be delivered. Please understand that this is out of our control and we will soon be able to offer our priority shipping again. All products are in stock and are being fulfilled within two days of orders being placed. Please contact us at support@sinbeachwear.com or our Contact Us page on the website for help locating your package.


Our aim at SIN is to offer you, our customer with high quality products at a fair price. So, how do we do that? Well, we cut out the middle man and the B/S price tags that normally come with it. Whilst you may find some of our products on the high street or other retail stores, we can proudly say at SIN we have little over heads and great relationships with our manufacturers. 

Having those great relationships mean we can ship our products directly from our manufacturing warehouses. Some of those warehouses are in Asia, Some are in Europe but all offer incredible quality and service.

Standard Shipping timelines  

For orders to the US, our current shipping estimate is 10-16 business days after the order has been shipped. For orders to the UK, our shipping estimate is10-16 business days after the order has been shipped. For orders to Canada, Australia, and most other European countries, our shipping estimate is 14-20 business days after the order has been processed / shipped. For other international orders, shipping estimates range from two to three weeks depending on the country of delivery.  

Tracked Shipping

FREE for all orders over £40 

£3.99 for all order under £40 

At SIN we only offer tracked shipping which is applied at the checkout.This will give you piece of mind, knowing your order is on it's way and allows you to keep updated on the progress of your order.

Priority Shipping is available for certain regions. SIN Beachwear is not responsible for delays in delivery by the shipping carrier. Delay of delivery is not grounds for refund.

If your order has not arrived in 21 working days, then please contact our customer care team on support@sinbeachwear.com

Return and Exchange Policy

Having issues with your order? We would be happy to exchange your SIN Beachwear for a different size or style! We offer exchanges on most orders that have sizing issues so that our customers can enjoy the perfect fit. 

All exchanges must be requested within 7 days of delivery. This exchange policy does not apply to used Swimwear where sanitary stickers have been removed or promotional orders. Orders are considered promotional if a discount code of more than 10% was used on the original order.

Please refer to our size guides if you are unsure of your size. 

Orders are fulfilled for shipment within 24 hours of being placed and cannot be changed after this time. Cancellations can only be offered within 24 hours under the condition that the order has not been fulfilled.

Please do not send your exchange back to our distribution facility.
Please contact our support team at support@sinbeachwear.com when seeking an exchange return address


You have a specific time frame of 30 days to return faulty goods and receive a full refund

If you select a refund, then it will be processed and a credit will automatically be applied to your original method of payment within a certain amount of days depending on your bank.

Late or missing refunds (if applicable)
If you haven’t received a refund yet, first check your bank account.
Then contact your credit card company, it may take some time before your refund is officially posted.
Next contact your bank. There is often some processing time before a refund is posted.
If you’ve done all of this and you still have not received your refund yet, please contact us at support@sinbeachwear.com.

Depending on where you live, the time it may take for your exchanged product to reach you, may vary. We will endevour to get your exchanged product to you as quickly as we can 

Our size guide serves as a general guideline  to help you find your size and best fit at SIN. Exact measurements vary with each style. 

If you have any concerns please email support@sinbeachwear.com

Our swimwear is true to size.

How to measure


  • This is not your bra size
  • Wear an unpadded bra (your dress will have a built-in bra)
  • Relax arm at sides, pull tape across the fullest part of the bust


  • Find the natural waist, this is the smallest part of the waist
  • Usually about 1 inch above belly button ,keep tape slightly loose to allow for breathing room


  • Find the widest part of hips
  • Usually about 7 inch below natural waist ,tape should brush across both hipbones
Size Chart
Tag size Fit USA Size Fit UK,AU Size Fit EU Size Fit Bust Fit Waist Fit Hip
XS 2 4 32 30-32 20-22 32-34
S 4,6 6,8 34,36 32-34 22-24 34-36
M 8,10 10,12 38,40 34-36 24-26 36-38
L 12,14 14,16 42,44 36-38 26-28 38-40
XL 16,18 18,20 46,48 38-40 28-30 40-42
Tag size Fit USA Size Fit UK,AU Size Fit EU Size Fit Bust Fit Waist Fit Hip
XS 2 4 32 76-81 51-56 81-86
S 4,6 6,8 34,36 81-86 56-61 86-91
M 8,10 10,12 38,40 86-91 61-66 91-97
L 12,14 14,16 42,44 91-97 66-71 97-102
XL 16,18 18,20 46,48 97-102 71-76 102-107