Update your browser for a better shopping experience!

Get faster load times, stronger security and access to all features.

Our fashion brands are back for delivery to England, Scotland and Wales

Free postal returns on all orders

M&S Collection

Secret Slimming™ Square Neck Swimsuit

Sorry, this item is no longer available

Product code: T525856

About this style

Take to the pool in style with a feminine one-piece in classic navy. Our bandeau swimsuit uses innovative Secret Slimming™ technology with an inner layer of control fabric to hold and flatter your figure so you can feel comfortable and confident. Ruching detail all the way down the front helps give a flattering fit by disguising lumps and bumps, and longer fit provides more comfortable wear around the pool. Seams either side of the waist create an hourglass shape and our Chlorine Resist finish will keep colours bright and fabric shapely. This Tummy Control swimsuit has a padded bust for a smooth finish, while adjustable straps will help you find the perfect fit.

Details & care

Item details

Model Height: 5ft 10"/178cm

Model is wearing size: 8

Fit and style

Longer length

Lined

Padded

Control: Tummy control

Sleeve length: Strap

Non wired

Added stretch

Chlorine resist

Features

Chlorine-resistant fabric

Composition

83% polyamide, 17% elastane lycra, Lining - 100% polyester, Mesh - 84% polyamide, 16% elastane lycra, Padding - 100% polyurethane, (exclusive of trimmings)

Care

Wash at 40°C

Do not bleach

Do not tumble dry

Do not iron

Do not dry clean

Reviews (180)

4.6

92% Recommended this product

Mentions
07 January 2019Scull

Swim wear

Yes, I recommend this

I am on the other side of 50 and this costume does all that is possible! Bought in sale so good value

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

10 December 2018KangerooKid247

ticks all the boxes

Yes, I recommend this

I like this costume. over the years I have purchased many. mostly in navy but like other reviews it would nice to have in other 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

23 November 2018Lorrie54

Excellent buy

Yes, I recommend this

I always buy M&S swimsuits - mainly because they offer the Longer length but also because of the quality. They are always hard-wearing, stylish and comfortable

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

16 November 2018Lyndyloo56

Fab swimsuit

Yes, I recommend this

Being tall (5'8") I ordered the extra long suit. It is so nice to have the extra length for comfort although if you were very tall you may struggle. This suit is of such a high quality, holds you in where you need it. The only downside is they are not in other 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 November 2018Bougainvillea

Great value

Yes, I recommend this

This was an emergency buy when I'd left mine at home. Great fit, very flattering style and feels like it should have been much more expensive.

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

30 September 2018Gymbug

Square neck swimming costume

Yes, I recommend this

I have had this swimming costume before and was pleased to be able to get another one the same style. I found the fit is good for sizing and it is very comfortable to wear. I swim regularly and the costume lasted well, even being subjected to chlorine each time.

Reviewer Ratings

Quality

Excellent

Value for Money

Good

Style

Good

How did it fit?

True to size

Helpful?

Reviewer Ratings

Quality

Excellent

Value for Money

Good

Style

Good

How did it fit?

True to size

16 September 2018jabiru

Great swimsuit

Yes, I recommend this

Lovely navy swimsuit and fits well True to size and very flattering Would highly recommend

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Helpful?

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

09 September 2018CarolineHM

Great fit if you have a long body

Yes, I recommend this

I am a size 16-18 and have a long body. I find it so difficult to buy swimming costumes that are long enough AND flattering. This costume is fabulous and ticks all the boxes.

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Excellent

Helpful?

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Excellent

08 September 2018K80lovesclothes

Very flattering

Yes, I recommend this

Lovely fit and gives a great silhouette.

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 August 2018Ben43

Great swimsuit

Yes, I recommend this

Please M&S can you design more swimsuits like this. Looks great on.

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 August 2018PollyJ

Nice

Yes, I recommend this

I am a 14/16, I bought the 16 and it is a good fit, good control and a nice neckline. Pleased with my purchase

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 August 2018Mountford22

Disappointing

No, I don't recommend this

Size too small, although I am a size 10 for most of your clothing this was extremely difficult to get on so will have to be returned. This was the second one I have been unable to get into so will have to go for the larger size. Pity about the sizing from M & S, wish it were more consistent.

Reviewer Ratings

Quality

Good

Value for Money

Good

Style

Average

How did it fit?

Small

Helpful?

Reviewer Ratings

Quality

Good

Value for Money

Good

Style

Average

How did it fit?

Small

11 August 2018Ilikecrafting2

Realy love this little number

Yes, I recommend this

Has a marvellous slimming effect

Reviewer Ratings

Quality

Good

Value for Money

Fair

Style

Excellent

How did it fit?

A bit large

Helpful?

Reviewer Ratings

Quality

Good

Value for Money

Fair

Style

Excellent

How did it fit?

A bit large

06 August 2018kandera

Secret slimming

No, I don't recommend this

This swimsuit felt like wearing a corset. Notgood for active swimming, maybe for spa days andlounging by the pool / beach but otherwise no. I always have difficulty getting swimwear that is long enough in the body and it is disappointing that of the 47 styles of swimsuit available by M&S only 3 come in a longer length and they all have secret slimming! There are plenty of active swimwear styles but not ina longer length. I returned this swimsuit.

Reviewer Ratings

Quality

Good

Value for Money

Good

Style

Average

How did it fit?

A bit small

Helpful?

Reviewer Ratings

Quality

Good

Value for Money

Good

Style

Average

How did it fit?

A bit small

05 August 2018charliebudgie

Best swimsuit

Yes, I recommend this

I purchased this swimsuit after reading that it is one of M&S best sellers. I am 66 and have recently started aqua classes so I needed a nice swimsuit and this certainly fits the bill. Perfect fit and comfortable. Great technology supports and hides tummy area without feeling constricted. Best swimsuit I have had.

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

04 August 2018sincere

Smashing

Yes, I recommend this

I bought two swimming costumes to select one! My husband liked both so much that he told me to keep them both. I have put on a bit of weight and so I bought an 18, it is very flattering even though I say it myself!

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

04 August 2018Mermaid605

more colours please

Yes, I recommend this

I bought this not expecting it to be anything special however as soon as a put it on I thought this is the one. A £25 swimsuit that looks like I've paid £100 for, The fit and sizing were perfect and the quality excellent. The neck line was very flattering and I was surprised how supportive on the bust it was. I had always gone for underwired. My only complaint, that there should have been more colours. As there weren't I bought the tankini in the same design in the red and black. very happy that I did so. So to the powers to be please 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

02 August 2018Ruddbuyer

Excellent value

Yes, I recommend this

This costume is a really good shape for me. I am usually a 12 but a bust size 34ff. I ordered a 14 based on other comments and it is a good fit, including on the bust. Very flattering and a good buy.

Reviewer Ratings

Quality

Good

Value for Money

Excellent

Style

Excellent

How did it fit?

A bit small

Helpful?

Reviewer Ratings

Quality

Good

Value for Money

Excellent

Style

Excellent

How did it fit?

A bit small

02 August 2018Elican

Long swimsuit

Yes, I recommend this

A simple, elegant swimsuit, which was a perfect fit and somehow eliminated any unwanted bulges. I wish M & S did a bigger range of long swimsuits.

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Good

How did it fit?

True to size

Helpful?

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Good

How did it fit?

True to size

01 August 2018Emanesse

The best fitting swimming costume

Yes, I recommend this

This is the most comfortable and best fitting swimming costume I have had since my first one at 3 years old! Full marks to M&S for this one! It makes me feel so slim - I love it! Please make more in other colours. Well worth the price - would recommend it to anyone and it arrived in time for my swimming lesson.

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Excellent

Helpful?

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Style

Excellent

1 of 30