How long will my order take?

We dispatch your order within 24 hours on weekdays and within 48 hours at weekends, and the exact dispatch date is shown on every product page before you buy. As soon as your parcel leaves you'll get a tracking link by email, so you can follow it every step of the way. If it hasn't reached you within 14 working days , email support@penshurstboutique.com with your order number and we'll trace it for you.

Is delivery really free?

Yes. Free tracked delivery on every order across the United Kingdom, with no minimum spend and nothing added at the checkout.

What if it doesn't fit?

You have 30 days from delivery to request a return. Email support@penshurstboutique.com with your order number and we will send you the return address and instructions. Please do not send anything back before you hear from us. Items must be unworn with tags attached. If the item arrives faulty, damaged or is not what you ordered, we pay the return postage. If you have simply changed your mind, the postage back is yours — there is no restocking fee and nothing is deducted from your refund.

How do I track my order?

Use the Track Your Order page with your order number and the email address you ordered with. You will also receive a tracking link by email once your parcel is dispatched. Tracking usually starts updating 3 to 5 days after dispatch.

All major debit and credit cards, plus Apple Pay, Google Pay and Shop Pay . Payment is handled by Shopify's secure checkout.

Will I get a confirmation email?

Yes. A confirmation lands in your inbox as soon as you order. If you cannot find it, check your spam folder and then email us at support@penshurstboutique.com and we will resend it.

4.8/5 based on 4,417 verified reviews

Thalassa | 3-in-1 Bikini Set

$237.95 $118.95 Save 50%

Only 8 left in stock

Free tracked UK delivery

30-day returns, no questions asked

100% Happiness Guarantee

Between two sizes? Take the larger one

Colour — Pink

Red (Almost sold out)

Light green (Almost sold out)

Black & White

Purple

S (8-10)

M (10-12)

L (12-14)

XL (14-16)

Order today, dispatched Tue 22 Sep

Free delivery

Due to high demand, stock at this price is running low. If “Add to Cart” is available, the piece is still in stock.

Buy more & save more

Buy 2 pieces Extra 10% Off
Buy 3 pieces Extra 15% Off
Buy 4 pieces Extra 20% Off
Buy 5 pieces Extra 25% Off

Discover the Allure of the Thalassa Bikini!

Get ready to make waves this summer with our fabulous Thalassa Bikini! Designed for style and comfort, this bikini is your go-to choice for unforgettable beach days and poolside lounging.

Why You’ll Adore the Thalassa Bikini:

🌊 Versatile Styling: Our bikini comes with a matching kimono that not only adds a touch of elegance but also gives you endless styling options. Use it as a chic cover-up for the perfect beach look!

💖 Comfortable Fit: Enjoy the perfect blend of style and support with a padded bikini top that provides flattering lift, while the elastic bottoms enhance your curves, ensuring you feel fabulous all day long.

🎨 Variety of Colours: With 9 stunning colour combinations to choose from, you can find the ideal style that perfectly reflects your personality and taste.

☀️ Quick-Drying Kimono: Made from lightweight, quick-drying fabric, our kimono is designed for your convenience, keeping you comfortable and chic after a dip in the water.

Embrace the sun and sea with the Thalassa Bikini—your ticket to effortless summer style!

Free home delivery

We’ll keep you informed every step of the way, from order to delivery. Enjoy free tracked home delivery on all orders, with no minimum spend, straight to your door.

24/7 customer service

At Penshurst Boutique, your comfort goes beyond the fit — it’s part of how we care for every customer. Whether you have a question about your order, need help choosing the right size, or want to know more about returns or delivery, our team is always ready to help.

You can reach us anytime by emailing support@penshurstboutique.com.

We aim to respond as quickly as possible — because your satisfaction means everything to us.

100% happiness guarantee

If your order isn’t quite right, no worries — you can return it within 30 days for a full refund. No hassle, no stress, just a simple process to make sure you’re completely happy with your purchase.

Secure payment

Your security is our priority. We offer multiple trusted payment options including Shop Pay, Google Pay, Apple Pay, and all major credit and debit cards — whichever you prefer, your transaction is fully protected.

Every purchase is secured with industry-standard SSL encryption, ensuring your personal and payment information remains completely confidential from the moment you browse to the second your order is confirmed. We never share, sell, or distribute your data to third parties under any circumstances.

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