Update your browser for a better shopping experience!

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

M&S

Sienna Straight Leg Jeans

£26

Colour

Customers say:

Fits true to size()
Waist

Inside Leg

Free standard delivery over £60

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

Item details

Model Height: 5ft10"/178cm

Model is wearing size: 16/LNG

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

Delivery, collection & returns

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 (11892)

4.3

67% Recommended this product

Mentions
24 November 2025mysticmolly
Verified Purchase

Sienna jeans.

Yes, I recommend this

I’ve always bought Sienna jeans in all there colours. They are the right fit, I can buy them with confidence knowing they are my regular size. Excellent value.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

24 November 2025Hay ho
Verified Purchase

Great jeans

Yes, I recommend this

Great quality and value for money. A reasonable good fit too.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

23 November 2025METER MAID
Verified Purchase

Comfortable jeans.

Yes, I recommend this

Good material and shape.Fitted around the waist comfortably.Too long for me .Returned for a shorter pair.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

23 November 2025Taggd
Verified Purchase

Great Vaue

Yes, I recommend this

Lovely pair of Jeans, fit nice, very reasonably priced.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

23 November 2025leogirl
Verified Purchase

Good jeans

Yes, I recommend this

Second pair of these jeans I have purchased, they are a good fit and good length. They keep their shape well and wash well too. Very happy.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

23 November 2025Springchock
Verified Purchase

Good jeans

No, I don't recommend this

The jeans looked really good until I tried them on. They were too small so I measured them against another pair of m&s Jeans and were at least 1” smaller on the waist. I was disappointed in them . So they are going back!!

Reviewer Ratings

How did it fit?

Small

Helpful?

Reviewer Ratings

How did it fit?

Small

23 November 2025Sll40
Verified Purchase

Great Quality

Yes, I recommend this

Good quality trousers. Have bought before and fit very well

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

23 November 2025Marie TG
Verified Purchase

? Slightly longer than expected

Yes, I recommend this

Regular length - seemed a bit longer than previous purchases

Helpful?

23 November 2025maxine m
Verified Purchase

My favourite jeans

Yes, I recommend this

I just love these jeans, so comfortable and great quality, I ordered 1 pair then an additional 2 pairs in different shades

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

22 November 2025Golfer Sue
Verified Purchase

Good fit

Yes, I recommend this

Good quality, well made and a good fit. I would buy these again in another colour.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

22 November 2025Lambo58
Verified Purchase

Great Jeans

Yes, I recommend this

I bought dark indigo size 12. These jeans had a nice cut and perfect length for regular. They are slightly thinner denim than my other M and S jeans but don’t look it. Great price. Will buy more in another colour.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

22 November 2025HazzaMarch
Verified Purchase

Good value at £26

Yes, I recommend this

Quite narrow ´straight´ jean but true to size and more thick chino material than black denim

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

22 November 2025BikerA
Verified Purchase

Nice product

Yes, I recommend this

Good quality ... would like these with a high waist.

Reviewer Ratings

How did it fit?

A bit small

Helpful?

Reviewer Ratings

How did it fit?

A bit small

22 November 2025Nan Bally
Verified Purchase

Great jeans for daily life running around, fitted.

Originally posted on marksandspencer.ie

Great everyday jeans. Good fit and very comfortable.

Helpful?

21 November 2025Gizmo 7218
Verified Purchase

Great jeans

Yes, I recommend this

Always buy these jeans, so comfortable true to size good quality with a bit of stretch

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

21 November 2025MOOMINMA
Verified Purchase

Favourite Jeans

Yes, I recommend this

These are the best jeans I've ever found, in both fit and as to how flattering they are. I would love them in a really dark grey or chocolate brown and maybe a beige in the summertime. I am 5'11" a size 18/20 and I generally go for an 18 long

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

21 November 2025KasiW
Verified Purchase

Fab Jeans

Yes, I recommend this

These were recommended by a friend and I love them. Being a petite 5"1 it's hard to find jeans to just put on and be fine. These fit perfectly and the petite length is spot on. I have bought 2 more in other colours.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

20 November 2025Pixie1027
Verified Purchase

Good quality

Yes, I recommend this

Really nice jeans, fit well. Xxshort fit me perfectly I’m 4ft 11ins.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

20 November 2025Rach S 1842
Verified Purchase

Great jeans

Yes, I recommend this

Great jeans that fit well and are comfortable and wash well.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

20 November 2025Kaz Finnis
Verified Purchase

Great fit

Yes, I recommend this

Great fitting jeans. They come in a shorter length so they are ideal.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

1 of 1982