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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

£26

Colour

Customers say:

Fits true to size()
Waist

Inside Leg

Free standard delivery over £75

Reviews (13020)

4.3

67% Recommended this product

Mentions
13 June 2026piecemaker
Verified Purchase

Sienna always good comfortable fit

Always go for sienna as they are a comfortable fit and true to size,reasonable price point too. Easily ordered for store pick up All good

Helpful?

13 June 2026Ambi42
Verified Purchase

Good fit

Yes, I recommend this

Nice straight leg, good fit, good denim. Thank goodness you still do these, have worn them for years and was delighted to still find them after searching through all the horrendous wide leg, funny shaped 'hoover bags' on display.

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

13 June 2026444333Mags
Verified Purchase

Comfortable and stylish jeans.

Yes, I recommend this

Love these easy to wear jeans. Cotton keeps you cool also.

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

13 June 2026Cortinaguy
Verified Purchase

great length

At 5’ 10 I struggle with leg length but the XL is ideal. Good stretch which I hope lasts when washed. Waist high which I don’t mind but usually prefer a mid rise

Reviewer Ratings

How did it fit?

True to size

Length

Good

Value for Money

Excellent

Material

Good

Style

Average

Helpful?

Reviewer Ratings

How did it fit?

True to size

Length

Good

Value for Money

Excellent

Material

Good

Style

Average

12 June 2026RalphPenny
Verified Purchase

Lovely fit jeans

Yes, I recommend this

Great quality and feel. I love these Jean a perfect fit. I’m going to get another pair

Reviewer Ratings

How did it fit?

True to size

Length

Fair

Value for Money

Excellent

Material

Excellent

Style

Excellent

Helpful?

Reviewer Ratings

How did it fit?

True to size

Length

Fair

Value for Money

Excellent

Material

Excellent

Style

Excellent

11 June 2026Diane2026
Verified Purchase

Super soft stretchy jeans

Yes, I recommend this

Super soft stretchy jeans. Not too heavy a material. Washes perfectly

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

11 June 2026
Verified Purchase

Most comfortable jeans I've ever purchased

Originally posted on marksandspencer.ie

Yes, I recommend this

Thank you so much for recommending the Sienna straight leg jeans to me. I'm really impressed with the attention to detail and kindness shown by the staff in store

Helpful?

11 June 2026JC292
Verified Purchase

Great value jeans

Yes, I recommend this

Fit perfectly and a great price. Fabric is soft and comfortable.

Reviewer Ratings

How did it fit?

True to size

Length

Excellent

Value for Money

Excellent

Material

Excellent

Style

Good

Helpful?

Reviewer Ratings

How did it fit?

True to size

Length

Excellent

Value for Money

Excellent

Material

Excellent

Style

Good

11 June 2026JP7
Verified Purchase

Good fit

Yes, I recommend this

Fut well, nice colour, robust. I have severalnpairs in differemt colours

Reviewer Ratings

How did it fit?

True to size

Length

Good

Value for Money

Excellent

Material

Excellent

Helpful?

Reviewer Ratings

How did it fit?

True to size

Length

Good

Value for Money

Excellent

Material

Excellent

10 June 2026Milly01
Verified Purchase

Great

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 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

10 June 2026Silver Maple
Verified Purchase

Glad to see they're still here!

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

Length

Good

Value for Money

Excellent

Material

Excellent

Style

Excellent

Helpful?

Reviewer Ratings

Length

Good

Value for Money

Excellent

Material

Excellent

Style

Excellent

09 June 2026zigzag
Verified Purchase

Exactly as ordered, thank you

Yes, I recommend this

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

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

09 June 2026sandydancer26
Verified Purchase

My First Choice Jeans

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 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

09 June 2026Rockchicken66
Verified Purchase

Great jeans at a good price

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 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

09 June 2026ZoeD51
Verified Purchase

Easy click and collect

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 did it fit?

True to size

Length

Good

Value for Money

Good

Material

Good

Style

Good

Helpful?

Reviewer Ratings

How did it fit?

True to size

Length

Good

Value for Money

Good

Material

Good

Style

Good

09 June 2026Short24
Verified Purchase

Short/petite

Nice jeans good quality but short/petite seems longer lately

Reviewer Ratings

Length

Helpful?

Reviewer Ratings

Length

09 June 2026Lisa3355
Verified Purchase

Good quality

Yes, I recommend this

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

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

09 June 2026Tracycol
Verified Purchase

Great quality

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 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

08 June 2026TRnorfolk
Verified Purchase

Nice comfortable fit

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

Reviewer Ratings

How did it fit?

True to size

Length

Good

Value for Money

Good

Material

Good

Style

Average

Helpful?

Reviewer Ratings

How did it fit?

True to size

Length

Good

Value for Money

Good

Material

Good

Style

Average

08 June 2026Lovecats6
Verified Purchase

Comfortable Jeans

Yes, I recommend this

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

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

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