Independent UK guide to large shoe sizes

Size 12 Sandals for Women: Where to Buy in the UK

tan leather strappy flat sandals on a sunny stone patio
AI-generated illustration made for this guide, not a product from any shop listed.

Quick answer: at UK 12 we found five shops, with a few styles or one style at each. Crispins Shoes has Hartjes walking sandals, a Gabor toe post and a raffia mule. Otto and Ivy has the Frankie and Bibi at EU 46, Marks and Spencer has Birkenstock Arizona in unisex sizing, and Next has a Long Tall Sally block heel and an adidas ZNSORY. ASOS has one unisex Dr Martens San. Long Tall Sally, Yours and Evans filters give no real result here.

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  • Shops compared5
  • At each shopA few styles, or one
  • Wide fits at 12None we could confirm
  • Foot length for UK 12296 mm (Long Tall Sally's chart)

Twelve is the size where the usual names disappear and the odd ones remain. Long Tall Sally, Yours and Evans have no filter result you can trust, and After 8 Shoes stops at 11. In their place come two shops that had nothing at 11: Marks and Spencer, through Birkenstock’s unisex sizing, and Otto and Ivy, which has a gap at 45 and then a few at 46. So a size 12 search can skip the obvious shops. The range of types is wider than the numbers suggest, with a walking sandal, a footbed, a block heel, a fisherman, a toe post and a mule all possible, but only one or two of each.

We checked shops’ own websites on 31 October 2026. Crispins Shoes’ and Otto and Ivy’s store data were read in full, and Marks and Spencer’s, Next’s and ASOS’s filters directly, with Next read before it refused further reads. Long Tall Sally’s, Yours’ and Evans’ filters at 12 returned their whole sandal lists, so we could not read them at this size. Otto and Ivy labels shoes in EU sizes, so its UK 12 is our reading. Most delivery and returns terms were read on 30 October. We did not check prices, and availability changes daily.

Where to buy size 12 sandals: 5 shops compared

Five UK shops that list women's sandals in size 12, compared on what they have, half sizes, widths, delivery and returns
ShopSandals at 12 (UK)12.5Widths at 12Delivery and returnsLink
CrispinsMost styles at 12A few: Hartjes, Sailor, Gabor, raffia muleNoNot checked£6.50, free over £250; UK returns within 14 days, unworn, at your cost (no free returns).See Crispins
Otto and IvyA few: Frankie, Bibi at 46Not checked
  • Standard
Next working day UK delivery (charges not shown on the page we read); returns within 30 days with £5 deducted, and one free size exchange per UK order.See Otto and Ivy
Marks and SpencerA few Birkenstock Arizona, unisex-sizedNoNot checked£3.99, free over £75; returns within 28 days (14 for sale items), free by post or in store, though orders under £10 or all-sale orders collected in store usually cannot be posted back.See Marks and Spencer
NextOne LTS block heel, adidas ZNSORY; slidersNoNot checkedNext-day delivery £4.95, free to a store; returns within 28 days, free in store or £2.50 by post.See Next
ASOSOne unisex Dr Martens SanNot checkedNot checked£4.50, free over £40; returns within 28 days, free for account holders under its Fair Use Policy, £3.95 for guest orders.See ASOS

Everything here sits on a shop’s women’s pages. The Dr Martens San at ASOS is labelled unisex, and Marks and Spencer’s Birkenstock Arizona is unisex-sized. Clogs are not counted, and Next’s adidas sliders are not counted as sandals. LTS is short for Long Tall Sally. “Not checked” means we did not record that detail. Delivery and returns are the standard UK terms, most read on 30 October 2026, as shown in search results where marked.

The shops in more detail

Crispins

Crispins Shoes had a few at 12: Hartjes Clay and Driftwood walking sandals, a Sailor labelled CH, which we read as Chica, the Gabor Spiritual White toe post, and one square-toe raffia mule. This read covered the whole collection. Nothing goes above 12. Its labels give EU 46 and US 14.5. Delivery is £6.50, free over £250. UK returns within 14 days must be unworn and are at your cost.

At 12
Hartjes, Sailor, Gabor, raffia mule
Above 12
Nothing available
Returns
14 days, at your cost
See Crispins sandals

Otto and Ivy

Otto and Ivy had the Frankie Sandal in Gold and Leopard and the Bibi Sandal in Silver at 46. It had none at 45. Forty-six is its largest size. It labels shoes in EU sizes, so UK 12 is our reading: use its sizing on the product page before ordering. It offers next working day delivery to the UK, though the page we read showed no charges. Returns within 30 days have £5 deducted from the refund, with one free size exchange per UK order.

At 46
Frankie, Bibi
At 45
None
Returns
30 days; £5 deducted
See Otto and Ivy sandals

Marks and Spencer

Marks and Spencer has a few Birkenstock Arizona Footbed Sandals at 12, shown on its women's list and unisex-sized. Everything else at 12 is Birkenstock Boston clogs, which we do not count. It had no sandal at 10 or 11, and 12 is its largest filter value. Delivery is £3.99, free over £75, and returns within 28 days (14 for sale items) are free by post or in store, though orders under £10 or all-sale orders collected in store usually cannot be posted back.

At 12
Birkenstock Arizona, unisex-sized
Not counted
Boston clogs
Returns
28 days (14 for sale items); free, with exemptions
See size 12 sandals at Marks and Spencer

Next

Next's list at 12 is mostly Crocs Classic Clogs and adidas sliders, neither of which we count as sandals. The sandals are the Long Tall Sally Natural Faux Suede Block Heel Sandals and the adidas Green ZNSORY Sandals. Its filter labels a UK 12 as EU 47. Next-day delivery is £4.95, or free to a store, and returns within 28 days are free in store or £2.50 by post.

At 12
LTS block heel, adidas ZNSORY
Not counted
Clogs, sliders
Returns
28 days; free in store, £2.50 by post
See size 12 sandals at Next

ASOS

ASOS's filter at 12 held the Dr Martens Unisex San fisherman sandal in black, which we read from the filter and did not open. It is labelled unisex. The filter also shows a Crocs Classic clog, which does not count, and possibly adidas Adimule slides. The Crocband flip was sold out at 12. Delivery is £4.50, free over £40. Returns within 28 days are free for account holders under its Fair Use Policy; guest orders cost £3.95 to return.

At 12
Dr Martens Unisex San
Label
Unisex
Returns
28 days; free for account holders
See size 12 at ASOS

Why the shops you expect are missing

  • Long Tall Sally, Yours and Evans: the filter at 12 returns the whole sandal list, so it is not a real result. Long Tall Sally’s page text says UK 4-13, but we found no sandal of its own at 12 on its site. Next, though, shows one of its block heels at this size.
  • After 8 Shoes: UK 11, EUR 45, is the largest size it had.
  • Simply Be and JD Williams: the filter shows only Crocs clogs. We read the names at 10, and the same number of items at 12.
  • Very: an adidas slider and an adidas Unisex Adilette Aqua, whose product page says 3-8.
  • Cosyfeet: its filter returns nothing at 12.
  • Shoe Zone: Adults EVA clog sandals, going by the same count as at 10.
  • Birkenstock: the women’s thong sandals filter stops at 11.5.

Sandal styles at size 12

For walking, the Hartjes Clay and Driftwood at Crispins Shoes are the only true walking sandals we can name. For a footbed, take the Birkenstock Arizona at Marks and Spencer, in unisex sizing. The Long Tall Sally block heel at Next is the one heeled sandal, in natural faux suede. The Dr Martens San is a fisherman style, and the adidas ZNSORY is in green at Next. The Gabor Spiritual is the toe post, and Crispins Shoes’ raffia mule the mule. Otto and Ivy’s Frankie and Bibi also sit in its Bridal Edit, as our size 12 smart shoes guide explains.

How to measure your feet for size 12 sandals

The shops here gave us no foot length at this size. Long Tall Sally’s chart gives 296 mm for a women’s UK 12, against 288 mm for an 11. We give it for reference only: we found no sandal on its own site at 12, and we did not read whether Next’s Long Tall Sally block heel is sized to it.

How to measure your foot length A foot on a sheet of paper with the heel against a wall. A line marks the tip of the longest toe, and the distance from the wall to that line is the foot length in millimetres. Wall Foot length, mm 1 Heel against the wall 2 Mark your longest toe 3 Measure wall to mark, both feet
Measure both feet in the evening, when they are at their largest, and use the longer one.
  1. Stand barefoot on paper, heel touching a wall.
  2. Mark your longest toe on each foot.
  3. Measure the longer foot, then read each brand’s own sizing, as EU labels vary.

Width fittings at size 12

We could not confirm a wide sandal at 12. Otto and Ivy’s wider fittings were 43W and 44W, and it had none at 46. We recorded no width for Crispins Shoes, Marks and Spencer, Next or ASOS at this size.

UK 12 in EU and US sizes

ShopEUUSFoot length
Crispins Shoes (size label)4614.5Not given
Otto and Ivy (site heading, approximate)4614Not given
Next (filter label)47Not givenNot given
Long Tall Sally (for length only)4514296 mm

Next’s filter skips EU 46 and labels UK 12 as EU 47. We could not confirm a sandal at 12 on Long Tall Sally’s own site, and it is here for its foot length. For Otto and Ivy, use its sizing on the product page.

Our picks for size 12

We pick from the facts in the table, not from prices or reviews, which we have not checked.

  • A walking sandal: Hartjes Clay or Driftwood at Crispins Shoes.
  • A footbed: Birkenstock Arizona at Marks and Spencer, in unisex sizing, with free returns and the usual exemptions.
  • A heeled sandal: the Long Tall Sally block heel at Next.
  • A sandal from a bridal range: Otto and Ivy’s Frankie in Gold or Bibi in Silver, after checking its sizing on the product page.
  • A toe post: the Gabor Spiritual at Crispins Shoes.

More size 12 guides

Frequently asked questions

Where can I buy sandals in size 12?

Crispins Shoes, Otto and Ivy, Marks and Spencer, Next and ASOS, with a few styles or one style at each.

Does Long Tall Sally list sandals at 12?

Not that we could confirm on its own site: its filter at 12 returned the whole list, unfiltered. Next shows one Long Tall Sally block heel at 12.

Are Birkenstocks available in size 12?

Marks and Spencer has a few unisex-sized Arizona Footbed Sandals at 12. The other Birkenstocks in that list are Boston clogs, which we do not count.

Is there a unisex sandal at 12?

Yes. The Dr Martens Unisex San fisherman sandal shows at ASOS, read from its filter and not opened. Marks and Spencer's Birkenstock Arizona is unisex-sized too.

Why does Very not count at 12?

Its filter shows adidas sliders whose product pages stop at 8, so we do not count it.

Are there wide fit sandals at 12?

We could not confirm one. Otto and Ivy's wider fittings were at 43W and 44W, and it had none at 46.

Shops were checked on their own websites on 31 October 2026, and most delivery and returns terms on 30 October 2026. Where we say so, details come from a shop’s own pages as shown in search results. We did not check Amazon UK’s listings.

Other sizes: size 11 sandals, size 13 sandals, or the full large sandals for women guide.