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Sienna Straight Leg Jeans

Product code: T577566

About this style

Add a touch of contemporary style to your everyday wardrobe with these Sienna denim jeans. The mid-rise design and straight leg cut offer a classic silhouette, while the super stretchable fabric provides all-day comfort and flexibility with a soft, comfortable feel. Perfect for casual wear, finished with a practical button and zip fastening for a secure fit. M&S Collection: easy-to-wear wardrobe staples that combine classic and contemporary styles.

Straight: Classic fit from hip to hem

Details & care

Fit and style

Straight leg

Button and zip fastening

Mid rise

Composition

80% cotton, 18% polyester and 2% elastane

Care

Wash at 40°C

Do not bleach

Do not tumble dry

Iron at medium temperature

Do not dry clean

M&S

Sienna Straight Leg Jeans

£26

Colour

Sale items

Customers say:

Fits true to size()
Waist

Inside Leg

Free standard delivery over £75

Reviews (13108)

4.3

67% Recommended this product

Mentions
03 August 2026HJB67
Verified Purchase

Great Jeans

Yes, I recommend this

Perfect Jeans. Good quality and fit. Very stylish.

Reviewer Ratings

How did it fit?

True to size

Length

Good

Value for Money

Excellent

Material

Excellent

Style

Excellent

Helpful?

Reviewer Ratings

How did it fit?

True to size

Length

Good

Value for Money

Excellent

Material

Excellent

Style

Excellent

02 August 2026MIS30
Verified Purchase

Sienna straight leg jeans

I was very disappointed that they had the creases at the front put in to make them look worn. I didn't want that and should have sent them back but they fitted well and i needed them. Won't buy M&S jeans on line again. A pity.

Helpful?

02 August 2026IS75
Verified Purchase

Nice purchase

Yes, I recommend this

Nice jeans and good colour. Little long but hopefully belt will help with that.

Reviewer Ratings

How did it fit?

True to size

Length

Excellent

Value for Money

Good

Material

Excellent

Style

Good

Helpful?

Reviewer Ratings

How did it fit?

True to size

Length

Excellent

Value for Money

Good

Material

Excellent

Style

Good

01 August 2026lynneypops18
Verified Purchase

Jeans

No, I don't recommend this

Size 18 to big , size 16 too tight on legs quality very good

Reviewer Ratings

How did it fit?

A bit small

Length

Good

Helpful?

Reviewer Ratings

How did it fit?

A bit small

Length

Good

30 July 2026Tooreen1
Verified Purchase

Great Trousers

No, I don't recommend this

Great fit and good colour. Also good length. Delivers very fast.

Reviewer Ratings

How did it fit?

True to size

Length

Good

Value for Money

Excellent

Material

Excellent

Style

Excellent

Helpful?

Reviewer Ratings

How did it fit?

True to size

Length

Good

Value for Money

Excellent

Material

Excellent

Style

Excellent

30 July 2026Nicole01
Verified Purchase

Fab

Originally posted on marksandspencer.ie

Yes, I recommend this

I have been looking for nice jeans for years! These fit really well, are flattering and are actually comfortable on.

Helpful?

29 July 2026CAP1
Verified Purchase

Nice quality straight jeans in various lengths

Yes, I recommend this

Petite size 18. I am 5ft 2" and ordered 2 sizes because I can range from 14/16/18 depending on style/shape. The 16 were too tight on the waist fine on hips/thighs. The 18 was a little big on the waist and thighs but I would rather be comfortable. Nice and stretchy.

Reviewer Ratings

How did it fit?

A bit large

Length

Good

Value for Money

Good

Material

Excellent

Style

Excellent

Helpful?

Reviewer Ratings

How did it fit?

A bit large

Length

Good

Value for Money

Good

Material

Excellent

Style

Excellent

28 July 2026merwoo55
Verified Purchase

Perfect

Perfect fit every time - great colour - always sold out in store so watch when available in online

Reviewer Ratings

How did it fit?

True to size

Length

Good

Value for Money

Excellent

Material

Excellent

Style

Excellent

Helpful?

Reviewer Ratings

How did it fit?

True to size

Length

Good

Value for Money

Excellent

Material

Excellent

Style

Excellent

28 July 2026Rolinski
Verified Purchase

Great fitting Jean

Yes, I recommend this

I already had one pair of these sienna straight leg jeans in white, which are a great fit, so decided to get a second pair in blue. Very happy with my choice. They are a good length, good fit and value for money. Not too heavy a denim either.

Reviewer Ratings

How did it fit?

True to size

Length

Good

Helpful?

Reviewer Ratings

How did it fit?

True to size

Length

Good

25 July 2026Hilary Dodd
Verified Purchase

Go to jeans

Yes, I recommend this

These are my go to jeans as I can rely on them for quality, fit and leg length

Reviewer Ratings

How did it fit?

True to size

Length

Good

Value for Money

Excellent

Material

Excellent

Style

Good

Helpful?

Reviewer Ratings

How did it fit?

True to size

Length

Good

Value for Money

Excellent

Material

Excellent

Style

Good

24 July 2026Tundeerke
Verified Purchase

Great trousers

Yes, I recommend this

Good us i expected, size perfect, stretch enough and comfy

Reviewer Ratings

How did it fit?

True to size

Length

Good

Value for Money

Excellent

Material

Excellent

Style

Excellent

Helpful?

Reviewer Ratings

How did it fit?

True to size

Length

Good

Value for Money

Excellent

Material

Excellent

Style

Excellent

23 July 2026Jacqui1956
Verified Purchase

These jeans are not what they were

Ive worn these Sienna jeans for years always 10R. Couldnt find them in any local store so bought on line. Sadly had to return them as they no longer fit. I measured them against the ones I already have. The waist now dipps at the front and it makes them tight underneath and around the groin. Very disappointed. They normally fasten by my tummy button but these were too low at the front. Shame they have changed the design or manufacturer as these have been my staple jeans for years. I now need to look elsewhere for my jeans.

Reviewer Ratings

Style

Poor

Helpful?

Reviewer Ratings

Style

Poor

21 July 2026sunny54pp
Verified Purchase

Stretch jeans.

Nice stretch Sienna jeans. A bit tight but they will give. Good quality, and value for money. Best price overall.

Reviewer Ratings

How did it fit?

A bit small

Length

Good

Value for Money

Excellent

Material

Excellent

Style

Excellent

Helpful?

Reviewer Ratings

How did it fit?

A bit small

Length

Good

Value for Money

Excellent

Material

Excellent

Style

Excellent

21 July 2026goodheavens
Verified Purchase

Lovely fit and length but not colour-fast?

Lovely fit and length, arrived very quickly. Only 4 stars as the dark blue evidently is not totally colour-fast and they advise on sitting on unprotected light colour furniture. If that had been clear at the time of purchase (and I may have missed some very small print,) I would not have got them as our sitting-room is full of pale beige seats!

Reviewer Ratings

How did it fit?

True to size

Value for Money

Excellent

Material

Good

Style

Excellent

Helpful?

Reviewer Ratings

How did it fit?

True to size

Value for Money

Excellent

Material

Good

Style

Excellent

21 July 2026Lady20
Verified Purchase

Good value ,they Good value.

Yes, I recommend this

I have bought several of these jeans in different colours and have been pleased with all.

Reviewer Ratings

How did it fit?

True to size

Length

Good

Value for Money

Excellent

Material

Excellent

Style

Excellent

Helpful?

Reviewer Ratings

How did it fit?

True to size

Length

Good

Value for Money

Excellent

Material

Excellent

Style

Excellent

20 July 2026Gi30
Verified Purchase

Good fit

I have bought a few pairs of these jeans and they have been consistent in sizing . The fit and length of the jeans is just right - I am 5ft 7ins and bought a 10 regular.

Reviewer Ratings

How did it fit?

True to size

Length

Good

Value for Money

Excellent

Material

Excellent

Style

Good

Helpful?

Reviewer Ratings

How did it fit?

True to size

Length

Good

Value for Money

Excellent

Material

Excellent

Style

Good

20 July 2026Pauline dog mam
Verified Purchase

Sienna jeans

Yes, I recommend this

These jeans are stretchy well made perfect fit I got 6 pairs incase they stopped selling

Reviewer Ratings

How did it fit?

True to size

Length

Good

Value for Money

Excellent

Material

Excellent

Style

Excellent

Helpful?

Reviewer Ratings

How did it fit?

True to size

Length

Good

Value for Money

Excellent

Material

Excellent

Style

Excellent

20 July 2026Coolchick17
Verified Purchase

Love these jeans!

Yes, I recommend this

Love the Sienna straight leg jeans - they are my go to choice. Good quality and fit really well - wash like a dream - best straight leg jeans for me - leg length (regular) is perfect.

Reviewer Ratings

How did it fit?

True to size

Length

Good

Value for Money

Excellent

Material

Excellent

Style

Excellent

Helpful?

Reviewer Ratings

How did it fit?

True to size

Length

Good

Value for Money

Excellent

Material

Excellent

Style

Excellent

19 July 2026Canonbie1
Verified Purchase

Perfect fit

Yes, I recommend this

Excellent quality. Comfortable to wear. Super value for the money. Style suits me.

Reviewer Ratings

How did it fit?

True to size

Length

Good

Value for Money

Excellent

Material

Excellent

Style

Excellent

Helpful?

Reviewer Ratings

How did it fit?

True to size

Length

Good

Value for Money

Excellent

Material

Excellent

Style

Excellent

17 July 2026JanH26
Verified Purchase

A super fit and very comfortable.

I now have three pairs - mid blue, dark blue and black. They are so comfortable and a great fit.

Helpful?

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