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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 (12884)

4.3

67% Recommended this product

Mentions
30 May 2026Linda3057955

Great Jeans

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

These are really comfortable jeans, they have a little stretch which I find really important as I don’t like really thick and heavy jeans.

Reviewer Ratings

How do you feel about the size?

A bit large

How did it fit?

Excellent

Value for Money

Excellent

Material

Excellent

Style

Excellent

Helpful?

Reviewer Ratings

How do you feel about the size?

A bit large

How did it fit?

Excellent

Value for Money

Excellent

Material

Excellent

Style

Excellent

30 May 2026JaqiCoolbear

Affordable fashion

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Great jeans - very comfortable & true to size - wil definitely buy another pair

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

30 May 2026RevEwer

Great fit/quality/colour & style

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I wanted Dark Indigo jeans to wear in a hotel in the evening. I know this style fits me 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

30 May 2026K74Gl

Value for money

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

These jeans fit me well and are comfortable to wear. I now have a few pairs of them. Nice mid blue colour.

Reviewer Ratings

How do you feel about the size?

True to size

How did it fit?

Excellent

Value for Money

Excellent

Material

Excellent

Style

Good

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

How did it fit?

Excellent

Value for Money

Excellent

Material

Excellent

Style

Good

29 May 2026Trishy18

Comfortable jeans

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Very comfortable jeans, nice to wear with trainers, sandals or boots.

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

29 May 2026ME1313

Really good pair of jeans

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Jeans are a great fit and look stylish without having to go all in with the barrel trend! Just right 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

29 May 2026Von2607

Great quality jeans

Originally posted on marksandspencer.com (UK)

Love these jeans, had them before, bought again, haven’t changed, fit well and comfy.

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

28 May 2026Sarah triathlete

Great jeans

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Always loved Sienna jeans as they fit me really well

Reviewer Ratings

How do you feel about the size?

True to size

How did it fit?

Good

Value for Money

Good

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

Good

Material

Excellent

Style

Excellent

28 May 2026Challen222

Fantastic jeans.

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Love these jeans. Bought them then realised I already had a pair so returned. They are comfortable and flattering.

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

28 May 2026Rachel J F

Reliable fit and quality

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Get the same ones every year in blue and in black. Good fit , good quality, good price.

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

28 May 2026Y_Ash

Good Jeans

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Comfortable, good materials and fit well. This is my third pair of the Sienna Straight 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

27 May 2026Tooter54

Simply the best

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

These jeans are my go to all the time, so comfortable. More colour for spring/autumn would be nice.

Reviewer Ratings

How do you feel about the size?

Very small

How did it fit?

Fair

Value for Money

Good

Material

Good

Helpful?

Reviewer Ratings

How do you feel about the size?

Very small

How did it fit?

Fair

Value for Money

Good

Material

Good

27 May 2026Viviannie

Good Buy

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

Good fit , colour and quality but would prefer less stretch to contain my bumps !

Reviewer Ratings

How do you feel about the size?

True to size

How did it fit?

Average

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?

Average

Value for Money

Good

Material

Good

Style

Average

27 May 2026KTC19

Nice colour and fit

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

These are good quality dark denim. The waist is a little too high on me for mid rise which makes them less comfortable than Levis.

Reviewer Ratings

How do you feel about the size?

True to size

How did it fit?

Good

Value for Money

Excellent

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

Excellent

Material

Good

Style

Good

27 May 2026yfr

Soft stretchy comfortable fit

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

Lovely soft stretchy fabric, and comfy and forgiving round the waist too, with slender fit on the legs

Reviewer Ratings

How do you feel about the size?

True to size

How did it fit?

Fair

Value for Money

Excellent

Material

Excellent

Style

Good

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

How did it fit?

Fair

Value for Money

Excellent

Material

Excellent

Style

Good

27 May 2026Mabelovespolly

Sienna Jean

Originally posted on marksandspencer.com (UK)

My forth pair & not great smaller, too stretch & will be passing them on to the charity shop. Wish I’d sent them back

Reviewer Ratings

How do you feel about the size?

A bit small

How did it fit?

Good

Value for Money

Poor

Material

Poor

Style

Poor

Helpful?

Reviewer Ratings

How do you feel about the size?

A bit small

How did it fit?

Good

Value for Money

Poor

Material

Poor

Style

Poor

27 May 2026Pampam21

Jeans

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Very good jeans. Good fit and good price would buy again👍

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

27 May 2026jayliz1

Excellent quality

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Great fit, good quality and very washable. Can even get away with no ironing. Highly recommend

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

27 May 2026Laura 3

My perfect jeans!

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I love these blue jeans! They fit perfectly, ordered regular length & feel & look good. Fit round the waist & comfortable to sit in. Its been a while since i had a pair of good looking & well fitting jeans! Thankyou M&S.

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

26 May 2026CLENeath

Could Do Better

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

This was the second pair of Sienna Straight Leg Jeans I purchased, the first being bought in store a week earlier. I found that the first pair were a good fit, 14 long, however the second pair of exactly the same type and size, are about an inch longer. Fortunately I sew and am able to take them up. However, It is such a pitty that M&S has such poor qualiy control.

Reviewer Ratings

How do you feel about the size?

True to size

How did it fit?

Value for Money

Average

Material

Fair

Style

Fair

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

How did it fit?

Value for Money

Average

Material

Fair

Style

Fair

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