The Eltham Bandeau Monokini
The Eltham Bandeau Monokini
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Swimwear & Lingerie Size Guide
For swimwear, lingerie and loungewear sold in letter sizes. These are body measurements.
| Size | UK | EU | Bust (cm) | Waist (cm) | Hip (cm) |
|---|---|---|---|---|---|
| XS | 6 | 34 | 78–81 | 60–63 | 86–89 |
| S | 8 | 36 | 82–85 | 64–67 | 90–93 |
| M | 10 | 38 | 86–89 | 68–71 | 94–97 |
| L | 12 | 40 | 90–94 | 72–76 | 98–102 |
| XL | 14 | 42 | 95–99 | 77–81 | 103–107 |
| XXL | 16 | 44 | 100–104 | 82–86 | 108–112 |
| XXXL | 18 | 46 | 105–110 | 87–92 | 113–118 |
Choosing your size
- Bikinis and swimsuits: choose your top by your bust and your bottoms by your hip. For a one-piece, choose the larger of the two sizes.
- Swimwear is designed to fit closely. If you are between sizes, choose the larger size for comfort.
- Bras sold in cup sizes (for example 34B) follow the band and cup shown on the product page.
- For hygiene reasons, please try swimwear and lingerie on over your own underwear.
How to measure
- Bust – around the fullest part, keeping the tape level across your back.
- Waist – around the narrowest part, usually just above the belly button.
- Hip – around the fullest part of your hips and bottom.
- Free UK delivery on orders over £49 (£3.99 otherwise)
- Tracked UK delivery in 6–10 working days, or Express in 4–7 working days (£7.99)
- 30-day returns · free exchanges
Description
Description
The keyhole halter swimsuit
Cut-outs, criss-cross ties, a clean line.
A strapless-cut swimsuit held up by a halter tie that criss-crosses through two keyhole cut-outs at the front. Simple in solid colours, with a high-cut leg.
Why you'll love it
- The neckline: a straight bandeau line with a halter tie at the neck
- The cut-outs: two keyholes at the front, laced with criss-cross ties
- The leg: a high-cut leg for a longer line
- The colours: White, Fuchsia, Brown, Blue and Black
See every angle



Where to wear it
Beach holiday · Sunset walks on the beach · Pool days · Honeymoon · Winter sun
Team yours with
Fit & size
Close fit. The halter tie adjusts the fit at the neck; between sizes, choose the larger size.
Fabric & care
- Polyamide
- Hand wash cold, dry flat
How it looks on you
Bought this swimsuit? Email a photo of you wearing it to support@marvelleof.com and, with your permission, we may feature it here.
Size & Fit
| Size | UK | Bust (cm) | Waist (cm) | Hip (cm) |
|---|---|---|---|---|
| S | 8 | 82 – 85 | 64 – 67 | 90 – 93 |
| M | 10 | 86 – 89 | 68 – 71 | 94 – 97 |
| L | 12 | 90 – 94 | 72 – 76 | 98 – 102 |
| XL | 14 | 95 – 99 | 77 – 81 | 103 – 107 |
Body measurements. Between sizes? Choose the larger size for a fitted look. Full size guide

Discover Marvelle
Pieces chosen for the season ahead
Marvelle is an online fashion boutique. We choose dresses, knitwear, coats, shoes and bags for the season, with tracked delivery in 6–10 working days to the UK and worldwide (UK Express in 4–7) and 30-day returns.
FAQ
How does delivery work?
Every order is sent with tracking. UK Standard Delivery arrives in 6–10 working days and costs £3.99, or is free on orders of £49 or more; UK Express Delivery arrives in 4–7 working days and costs £7.99. International Delivery arrives in 6–10 working days and costs £7.99, or is free on orders of £79 or more. Outside the UK, import duties and taxes may be charged on delivery.
How can I contact you?
Email marvelle.oficialuk@gmail.com. We reply Monday to Friday, within 24 hours.
Which payment methods do you accept?
You can pay with the methods shown at checkout. Payments are processed securely by Shopify.
How do I return an item?
You have 30 days to return an item. Email us first and we will send you the return details. In the UK, exchanges are free and a £3.95 fee is taken from refunds. From outside the UK, you pay the return postage and no fee is taken.
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