The Upminster Fish-Mouth Beach Sandals
The Upminster Fish-Mouth Beach Sandals
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Shoe Size Guide
Our shoes are labelled with the EU size and the matching UK size shown below. Foot length is the most reliable guide, so measure your foot before you order.
| EU | UK | US | Foot length (cm) |
|---|---|---|---|
| 33 | 0 | 2 | 20.5 |
| 34 | 1 | 3 | 21 |
| 35 | 2 | 4 | 22 |
| 36 | 3 | 5 | 22.5 |
| 37 | 4 | 6 | 23.5 |
| 38 | 5 | 7 | 24 |
| 39 | 6 | 8 | 24.5 |
| 40 | 7 | 9 | 25 |
| 41 | 8 | 10 | 25.5 |
| 42 | 9 | 11 | 26 |
| 43 | 10 | 12 | 26.5 |
| 44 | 11 | 13 | 27.5 |
| 45 | 12 | 14 | 28.5 |
| 46 | 13 | 15 | 29.5 |
How to measure your foot
- Stand on a sheet of paper with your heel against a wall, ideally in the evening when feet are at their largest.
- Mark the tip of your longest toe and measure from the wall to the mark in centimetres.
- Measure both feet and use the longer one.
Choosing your size
- If your foot is between two lengths, choose the larger size.
- If you usually wear a half size (for example UK 5.5), choose the next size up.
- Wide feet, or boots you will wear with thick socks: choose one size up.
- Heels and pointed shoes feel snugger at the toe. If you are between sizes, size up.
- 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
% Black Friday: 15% off
The discount is applied automatically in your bag and at checkout until 30 November 2026, 23:59 UK time. Terms
Description
Description
The holiday flat
Braided straps, flat sole, sun on your toes.
A flat sandal with colourful braided straps that cross over the foot and loop the big toe, held at the back by a soft elastic strap. Made for holidays, beach days and warm weekends, and a bright choice to pack for winter sun.
Why you'll love it
- The straps: slim braided straps in a mix of colours, crossing over the foot
- The toe: a toe loop that keeps the sandal in place as you walk
- The back: an elastic heel strap, so they slip on without buckles
- The sole: a flat rubber sole with a cushioned PU insole
See every angle
Where to wear it
Beach holiday · Winter sun · Poolside · Summer weekends · City break
Team yours with
The Colliers Wood Suede-Effect Zip-Up Jacket
The Streatham Faux-Suede Shoulder BagFit & size
Relaxed, flat fit with an elastic back strap. EU = UK + 33 (as on the size selector). Between sizes, choose the larger size.
Fabric & care
- Synthetic upper, PU insole, flat rubber sole
- Wipe clean with a damp cloth
How it looks on you
Bought these sandals? Email a photo of you wearing them to support@marvelleof.com and, with your permission, we may feature it here.
Size & Fit
| EU | UK | US | Foot length (cm) |
|---|---|---|---|
| EU 36 | UK 3 | US 5 | 22.5 |
| EU 37 | UK 4 | US 6 | 23.5 |
| EU 38 | UK 5 | US 7 | 24 |
| EU 39 | UK 6 | US 8 | 24.5 |
| EU 40 | UK 7 | US 9 | 25 |
| EU 41 | UK 8 | US 10 | 25.5 |
| EU 42 | UK 9 | US 11 | 26 |
| EU 43 | UK 10 | US 12 | 26.5 |
Choose by foot length. Between sizes or wide feet? Choose the larger size. 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.