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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

Item details

Model Height: 5ft9"/176cm

Model is wearing size: 8 Long

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

€32

Colour

Waist

Inside Leg

Free standard delivery over €75

Reviews (12923)

4.3

67% Recommended this product

Mentions
10 June 2026Milly01

Great

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

These jeans are a great fit, they do differ in size with the different colours though. They wash well and keep their shape even after tumble drying.

Reviewer Ratings

How do you feel about the size?

True to size

How did it fit?

Good

Value for Money

Excellent

Material

Excellent

Style

Excellent

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

How did it fit?

Good

Value for Money

Excellent

Material

Excellent

Style

Excellent

10 June 2026Silver Maple

Glad to see they're still here!

Originally posted on marksandspencer.com (UK)

I bought a pair of these jeans years ago. They are such a nice fit that when I needed a new pair I was gad to see the same style still available.

Reviewer Ratings

How did it fit?

Good

Value for Money

Excellent

Material

Excellent

Style

Excellent

Helpful?

Reviewer Ratings

How did it fit?

Good

Value for Money

Excellent

Material

Excellent

Style

Excellent

09 June 2026zigzag

Exactly as ordered, thank you

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Great feel and good fit with quality fabric, so exactly what I wanted

Reviewer Ratings

How do you feel about the size?

True to size

How did it fit?

Good

Value for Money

Excellent

Material

Excellent

Style

Excellent

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

How did it fit?

Good

Value for Money

Excellent

Material

Excellent

Style

Excellent

09 June 2026sandydancer26

My First Choice Jeans

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Last for years then I replace the, same ones every time, always have two pairs on the go. How could I live without them? Wash brilliantly, survive the dryer for years, highly recommended.

Reviewer Ratings

How do you feel about the size?

True to size

How did it fit?

Good

Value for Money

Excellent

Material

Excellent

Style

Excellent

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

How did it fit?

Good

Value for Money

Excellent

Material

Excellent

Style

Excellent

09 June 2026Rockchicken66

Great jeans at a good price

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I needed some new straight leg jeans as my last ones were too big and these are perfect, good price and great quality

Reviewer Ratings

How do you feel about the size?

True to size

How did it fit?

Good

Value for Money

Excellent

Material

Excellent

Style

Excellent

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

How did it fit?

Good

Value for Money

Excellent

Material

Excellent

Style

Excellent

09 June 2026ZoeD51

Easy click and collect

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Pick up jeans click and collect. Tried the on excellent fit and a decent length i am 5ft 8 and ordered 10L. I was so pleased with the fit I found another pair on the rail different colour and bought it as well

Reviewer Ratings

How do you feel about the size?

True to size

How did it fit?

Good

Value for Money

Good

Material

Good

Style

Good

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

How did it fit?

Good

Value for Money

Good

Material

Good

Style

Good

09 June 2026Short24

Short/petite

Originally posted on marksandspencer.com (UK)

Nice jeans good quality but short/petite seems longer lately

Reviewer Ratings

How did it fit?

Helpful?

Reviewer Ratings

How did it fit?

09 June 2026Lisa3355

Good quality

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Blue back colour would be good and a pocket big enough for standard iPhone

Reviewer Ratings

How do you feel about the size?

True to size

How did it fit?

Good

Value for Money

Excellent

Material

Excellent

Style

Excellent

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

How did it fit?

Good

Value for Money

Excellent

Material

Excellent

Style

Excellent

09 June 2026Tracycol

Great quality

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I've always brought m&s jeans and they have always fitted well. These are lovely quality and feel soft. Great length for me.

Reviewer Ratings

How do you feel about the size?

True to size

How did it fit?

Good

Value for Money

Excellent

Material

Excellent

Style

Excellent

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

How did it fit?

Good

Value for Money

Excellent

Material

Excellent

Style

Excellent

08 June 2026TRnorfolk

Nice comfortable fit

Originally posted on marksandspencer.com (UK)

Fit true to size, consistent quality better value than some of other m&s jeans

Reviewer Ratings

How do you feel about the size?

True to size

How did it fit?

Good

Value for Money

Good

Material

Good

Style

Average

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

How did it fit?

Good

Value for Money

Good

Material

Good

Style

Average

08 June 2026Lovecats6

Comfortable Jeans

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Good fit and quality . Washed well , handy for any occasion wear . Perfect length for me , short leg .

Reviewer Ratings

How do you feel about the size?

True to size

How did it fit?

Good

Value for Money

Excellent

Material

Excellent

Style

Excellent

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

How did it fit?

Good

Value for Money

Excellent

Material

Excellent

Style

Excellent

07 June 2026Katrun

great quality

Originally posted on marksandspencer.com (UK)

Siena straight legs jeans are lovely and soft they also look great.

Reviewer Ratings

How did it fit?

Poor

Value for Money

Excellent

Material

Excellent

Style

Excellent

Helpful?

Reviewer Ratings

How did it fit?

Poor

Value for Money

Excellent

Material

Excellent

Style

Excellent

07 June 2026Chrism74

Love these jeans

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Love these jeans! Ordered size 12 short and fitted perfectly

Reviewer Ratings

How do you feel about the size?

True to size

How did it fit?

Good

Value for Money

Excellent

Material

Excellent

Style

Excellent

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

How did it fit?

Good

Value for Money

Excellent

Material

Excellent

Style

Excellent

07 June 2026Lucydog1946

Jeans

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Great material, great fit and so comfortable to wear, my sister bought them as well and when my other sister arrives from Australia she’s going to get them as well

Reviewer Ratings

How do you feel about the size?

True to size

How did it fit?

Good

Value for Money

Excellent

Material

Excellent

Style

Excellent

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

How did it fit?

Good

Value for Money

Excellent

Material

Excellent

Style

Excellent

07 June 2026Mads15

Straight Leg Jeans

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

To be honest I wasn't expecting much from these jeans given the price, but the short leg option tempted me as I am tired of having to take jeans & trousers up before I can wear them. The quality is great, the fit is perfect, and the legs are just the right length. I'm so pleased with them that I am ordering another pair in a different shade.

Reviewer Ratings

How do you feel about the size?

True to size

How did it fit?

Good

Value for Money

Excellent

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

How did it fit?

Good

Value for Money

Excellent

07 June 2026Noreenp

Sienna jeans

Originally posted on marksandspencer.com (UK)

Purchased size 10 extra short Sienna jeans. Fit is good and length ideal for me (5ft). Very pleased and consider them good value.

Helpful?

06 June 2026Mrs Jill Allsop

Nice material

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I had to shorten them as you did not have shirt in that design. I like the straight cut jeans and think the barrel ones are awful. Wide bottom ones can be flattering if they are boot cut one but the very wide ones are quite flappy and dangerous.

Reviewer Ratings

How do you feel about the size?

A bit small

How did it fit?

Good

Value for Money

Good

Material

Excellent

Style

Excellent

Helpful?

Reviewer Ratings

How do you feel about the size?

A bit small

How did it fit?

Good

Value for Money

Good

Material

Excellent

Style

Excellent

06 June 2026Littlegem2006

Great jeans

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

As described. Size as expected fit great. Would buy again in another colour

Reviewer Ratings

How do you feel about the size?

True to size

How did it fit?

Good

Value for Money

Good

Material

Good

Style

Good

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

How did it fit?

Good

Value for Money

Good

Material

Good

Style

Good

06 June 2026Frankie3010

Great fit

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

These were boight as a spare pair for when I wear my other pair out. Live in them. They are so comfortable. Colour doesnt run when washed either.

Reviewer Ratings

How do you feel about the size?

True to size

How did it fit?

Good

Value for Money

Excellent

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

How did it fit?

Good

Value for Money

Excellent

06 June 2026tricia2512

Was a no brainer.

Originally posted on marksandspencer.com (UK)

I bought a pair of this style a couple of years ago, they have been great, fit well and always look good. I had no hesitation in adding another like for like pair when a different brand needed replacing.

Reviewer Ratings

How do you feel about the size?

True to size

How did it fit?

Good

Value for Money

Excellent

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

How did it fit?

Good

Value for Money

Excellent

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