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M&S

Square Neck Swimsuit

£16

Colour

Customers say:

Fits a little small()
Size

Length

Free standard delivery over £60

Product code: T520984

About this style

This swimsuit's minimal design makes it a great choice for styling on or off the beach. The flattering square neckline frames your décolletage beautifully, while adjustable straps ensure the perfect fit. Made from fabric with added stretch, it offers comfort and support in a regular fit. M&S Collection: easy-to-wear wardrobe staples that combine classic and contemporary styles.

Details & care

Item details

Model Height: 5ft8"/172cm

Model is wearing size: 8

Fit and style

Regular fit

Non wired

Adjustable straps

Added Stretch

Composition

80% polyamide, 20% elastane , Lining - 100% polyester

Care

Wash at 40°C

Do not bleach

Do not tumble dry

Do not iron

Do not dry clean

Delivery, collection & returns

Christmas delivery and collection last-order dates

Standard Delivery

Order by Saturday 20th of December

Nominated Day Delivery

Order by Tuesday 23rd of December

Store Collection

Order by Tuesday 23rd of December

Delivery

Standard

UK Standard Delivery is available for £3.99 or free on orders over £60 (excluding furniture).

Nominated Day

UK Next Day Delivery and UK Nominated Day Delivery (excluding Northern Ireland) are available for £5.99 (excluding furniture)

Collection

Collect from store

Store collection is free on all fashion, home and beauty orders.

Returns

UK returns

Free

Exclusions apply

Full delivery and collection informationOur returns policy

Reviews (173)

4.1

57% Recommended this product

Mentions
15 December 2025carolep1969
Verified Purchase

Straps too thin

Yes, I recommend this

Overall a good costume especially for the price. Good fit, everything stayed in place. The straps were a bit too thin, and upon removing had cut into my shoulders. Washed well.

Reviewer Ratings

How did it fit?

True to size

Length

Good

Value for Money

Excellent

Material

Good

Style

Good

Helpful?

Reviewer Ratings

How did it fit?

True to size

Length

Good

Value for Money

Excellent

Material

Good

Style

Good

09 December 2025Selina2025
Verified Purchase

Low cost, comfortable great quality product

Yes, I recommend this

Need a swimming costume quickly didn’t want to pay to much

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

18 November 2025Sos
Verified Purchase

Simple stying and comfortable ! Perfect !

Yes, I recommend this

I’ve had a couple of these in the past and they are comfortable and simple. Fit well and have lasted even tho they are constantly used for swimming sauna and steam rooms . Love to but the new designs every year !

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

15 November 2025Lily of the valley 8
Verified Purchase

Great basis costume

Yes, I recommend this

Good basic swimming costume that is a must have. Flattering. Only criticism is the coverage on the bottom could be bigger (I’m a size 8)

Reviewer Ratings

How did it fit?

A bit small

Helpful?

Reviewer Ratings

How did it fit?

A bit small

13 October 2025Yvettenn
Verified Purchase

Lovely quality

Comfortable swimsuit but not too supportive with top heavy ladies. There is a inner layer for the chest area which isn't too good if you're a size E+

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

27 April 2025Shopaholic54
Verified Purchase

Great value though material a little thin.

No, I don't recommend this

I need a longer body fit so hoped this swimsuit would do the trick. The length was fine but the material just a little thin. I'd have paid extra for something a little more substantial.

Reviewer Ratings

Quality

Average

Value for Money

Good

Style

Good

How did it fit?

A bit small

Helpful?

Reviewer Ratings

Quality

Average

Value for Money

Good

Style

Good

How did it fit?

A bit small

19 April 2025Jenjd
Verified Purchase

It will do as a basic swimsuit

No, I don't recommend this

It was nice but quite short in the body it will do as a basic swim suit

Reviewer Ratings

Quality

Average

Value for Money

Fair

Style

Good

How did it fit?

A bit small

Helpful?

Reviewer Ratings

Quality

Average

Value for Money

Fair

Style

Good

How did it fit?

A bit small

17 April 2025Jill750
Verified Purchase

So comfortable

Yes, I recommend this

My daughter says that this is so comfy and she can't wait to wear it on holiday

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Excellent

How did it fit?

True to size

Helpful?

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Excellent

How did it fit?

True to size

14 April 2025Abba lady
Verified Purchase

Great quality comfortable love it!

Yes, I recommend this

Love this! Really comfortable to wear im 65 and didnt want to look old fashioned, and i didnt so perfect good coverage. Will be buying another for my next hols x

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Excellent

How did it fit?

True to size

Helpful?

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Excellent

How did it fit?

True to size

13 April 2025Kit128
Verified Purchase

Poor quality

Will be returning this swimsuit, the quality is poor.multiple ladders appeared in the lining when trying on.

Reviewer Ratings

Quality

Poor

Helpful?

Reviewer Ratings

Quality

Poor

11 April 2025Mb2222
Verified Purchase

Nice but size is very off

Yes, I recommend this

Had to size up two sizes - usuallly size 10 in m&s to 14 as the fit was totally off. Should’ve checked the previous reviews. Nice material and shape. Ordered the black - hoping it’s a long term versatile wardrobe item.

Reviewer Ratings

Quality

Good

Value for Money

Excellent

Style

Good

How did it fit?

Very small

Helpful?

Reviewer Ratings

Quality

Good

Value for Money

Excellent

Style

Good

How did it fit?

Very small

11 April 2025Sazzy86
Verified Purchase

Low price low coverage

No, I don't recommend this

Swimsuit not long enough in the body didn’t fit very well size 14 5ft 7in

Reviewer Ratings

Quality

Poor

Value for Money

Poor

Style

Poor

How did it fit?

Small

Helpful?

Reviewer Ratings

Quality

Poor

Value for Money

Poor

Style

Poor

How did it fit?

Small

27 March 2025Lillydee

Mustard swimsuit

No, I don't recommend this

So I bought the mustard swimsuit in 8 regular and it fitted perfectly . However It left nothing to the imagination, as it was pretty see through , I wouldn’t wear it in a ‘cool’ swimming pool if you know what I mean . So returned

Reviewer Ratings

Quality

Average

Value for Money

Average

Style

Excellent

How did it fit?

True to size

Helpful?

Reviewer Ratings

Quality

Average

Value for Money

Average

Style

Excellent

How did it fit?

True to size

20 March 2025Paulie61
Verified Purchase

GOOD BASIC SWIMWEAR….

Originally posted on marksandspencer.ie

Yes, I recommend this

Good basic swimsuit. Applaud the simplicity of the design and the colour is refreshingly flattering. Although it is available in alternative sizing options, I found the regular fit to be most suitable to my needs as I am petite height at 5.2 inches. Rated 4 stars as the styling is rather low cut at bust and the ‘banding’ of the swimsuit puckers under arm with some gaping of the material present. This is a design flaw and could be rectified by slightly widening the straps.

Helpful?

07 March 2025Sunfield
Verified Purchase

Great quality & price swimsuit

Yes, I recommend this

Simple but elegant swimsuit with thin straps. Enough support in the bust insert for a DD cup.

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Excellent

How did it fit?

True to size

Helpful?

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Excellent

How did it fit?

True to size

05 March 2025unc4
Verified Purchase

not true to size poor quality

Originally posted on marksandspencer.ie

You get what you pay for!!!! Very Disappointed in it

Helpful?

05 March 2025prof caro
Verified Purchase

Small - size up at least once

Very long straps so this ends up skimming the breasts. It's also a very small fit even though I sized up after reading the reviews.

Helpful?

03 March 2025EiMC
Verified Purchase

Lovely swimsuit~ true to size and comfortable.

Yes, I recommend this

Lovely Swimsuit, comfortable and true to size. Please make in more colours!

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Excellent

How did it fit?

True to size

Helpful?

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Excellent

How did it fit?

True to size

01 March 2025Blondie714
Verified Purchase

Disappointed

No, I don't recommend this

I always buy M&S swimsuits and have always loved them. However, I guess you get what you pay for! This was only £15 and doesn’t fit well at all! I kept it for lane swimming but now not used that much.

Reviewer Ratings

Quality

Poor

Value for Money

Poor

Style

Poor

How did it fit?

A bit small

Helpful?

Reviewer Ratings

Quality

Poor

Value for Money

Poor

Style

Poor

How did it fit?

A bit small

26 February 2025Cristina H
Verified Purchase

Swimsuit

Originally posted on marksandspencer.ie

Yes, I recommend this

Good quality product ,true to size. Very good price !

Helpful?

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