Update your browser for a better shopping experience!

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

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

M&S

Sienna Straight Leg Jeans

€32

Colour

Waist

Inside Leg

Free standard delivery over €75

Reviews (12601)

4.3

67% Recommended this product

Mentions
11 April 2026dressoholic

Lovely jeans

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Good price and value good quality denim perfect length

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

11 April 2026Hilsy A

Good quality jeans.

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Nice jeans. Fabric is good and the length is just right in a short as I am only 5'1. Just the right amount of stretch.

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

11 April 2026hithere349d

Good, good long length

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Purchased these as i could'nt find the usual corduroy trousers from m&s that i like...dont know why they are not selling them! Jeans seem good quality and LOVE the extra length - for us tall girls !👍

Reviewer Ratings

How do you feel about the size?

True to size

How did it fit?

Good

Material

Good

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

How did it fit?

Good

Material

Good

11 April 2026Cosygirl

Good but not as good as they were

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

Have had countless pairs of these and they are my go to comfy jeans. However, the last 2 pairs seem shorter in the rise and aren’t quite as good - they need hitching up all the time so think the search is on for a replacement.

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

10 April 2026Cheam50

Great jeans - but beware the sizing!

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Would have given 5 stars but the sizing is now wrong on the Sienna range. Excellent, good value jeans, which manage to be straight leg yet not flap at the ankle. I've been buying them for years in all colours. Still wearing my usual size in my old jeans but had to buy a size larger this time around.

Reviewer Ratings

How do you feel about the size?

Very small

How did it fit?

Good

Value for Money

Excellent

Material

Excellent

Style

Excellent

Helpful?

Reviewer Ratings

How do you feel about the size?

Very small

How did it fit?

Good

Value for Money

Excellent

Material

Excellent

Style

Excellent

10 April 2026Bert777

Fabulous jeans

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Fabulous white jeans. I love Sienna straight leg, these are my go to jeans

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Excellent

Material

Excellent

Style

Excellent

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Excellent

Material

Excellent

Style

Excellent

10 April 2026Exploratrice

Do not work for pear shaped girls

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

I’m looking for a good quality white jeans for a long time. The good thing these are stretchy enough to fit my wide hips and good length for my 5.10 height. From the quality perspective, I’d love them to be more thicker as you can see the underwear even the skin colour and seamless. But the key reason for a return is that waist is too big, extra 2 inches

Reviewer Ratings

How do you feel about the size?

Large

How did it fit?

Good

Value for Money

Good

Material

Average

Style

Average

Helpful?

Reviewer Ratings

How do you feel about the size?

Large

How did it fit?

Good

Value for Money

Good

Material

Average

Style

Average

10 April 2026Mrs Smiley

Very happy

Originally posted on marksandspencer.com (UK)

Bought to replace a pair of tired identical jeans. However, I had to buy regular length instead of short. Apart from that very happy

Reviewer Ratings

Value for Money

Excellent

Helpful?

Reviewer Ratings

Value for Money

Excellent

10 April 2026Bengal 21

Jeans

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Great jeans just wished I could have got them In the shop absolutely nothing suitable in shop

Reviewer Ratings

How do you feel about the size?

True to size

How did it fit?

Good

Value for Money

Average

Style

Fair

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

How did it fit?

Good

Value for Money

Average

Style

Fair

10 April 2026Jb673

Not so petite

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

Quality never an issue but I'm petite so always buy short/petite but so often, as is the case with these jeans, they are still wayyyy too long. Otherwise these are nice jeans once I hem them

Reviewer Ratings

How do you feel about the size?

True to size

How did it fit?

Value for Money

Good

Material

Excellent

Style

Good

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

How did it fit?

Value for Money

Good

Material

Excellent

Style

Good

09 April 2026Mawtisha

Great Jeans

Yes, I recommend this

I have this style of jeans in other colours as the fit beautifully and have a good Length . They are not bright white more a light cream but still fab and true to size

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Helpful?

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

09 April 2026manhattangirl

Makes a change

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I bought these as a change from the Lily Slim. They are looser but I think I prefer the fit of the Lily. I chose these in black and against my old jeans, these are very black! They look quite smart.

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

09 April 2026Jems10

Lovely to wear

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Love these!! Thin jean type, true to size. So comfortable and easy to wear- would definitely 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

09 April 2026Bettybool

Small fitting

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Small fitting, would say more an 8 than a 10. Leg length good for a 5ft person

Reviewer Ratings

How do you feel about the size?

Small

How did it fit?

Good

Helpful?

Reviewer Ratings

How do you feel about the size?

Small

How did it fit?

Good

09 April 2026HappySam Greyhound mamma

Great price for an every day staple

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Love these jeans, third time I've purchased in the last couple of years. Excellent price for decent quality every day jeans. It's great to have shorter options as it's such a pain and expense to otherwise have 3 or 4" off length removed.

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 April 2026Grandma253

What size???

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

I ended up ordering 2 pairs of Sienna jeans, different colours and different sizes. The first pair I ordered was a size 16. I could take them off with ease without even unfastening the zip or button. They felt very loose and in no time at all I was having to pull them up after a few steps. I then ordered a size 14. Unfortunately regardless of how much I pulled my tummy in I couldn’t got the waistband to meet, button and buttonhole had at least a 2 or 3 inch gap. So I wonder was the size 16 really an 18 or was the size 14 really a 12. Obviously someone can’t get the sizes to make any sense. Maybe I was just unlucky but certainly put me off trying another pair.

Reviewer Ratings

How did it fit?

Good

Value for Money

Poor

Material

Average

Style

Average

Helpful?

Reviewer Ratings

How did it fit?

Good

Value for Money

Poor

Material

Average

Style

Average

08 April 2026ChezTh

The perfect jeans

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Soft, perfect length, comfortable jeans. 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

08 April 2026Elizabeth 89

Straight leg jeans

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Comfortable jeans, slight fading on the legs which I was not expecting

Reviewer Ratings

How do you feel about the size?

True to size

Material

Good

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

Material

Good

08 April 2026Duracell69

Good fit

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Great on comfortable M&S jeans usually are , only worn once so don't know how these ones wash

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 April 202628purple

Jeans

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Found the fit to be perfect. Really comfortable ans lovely quality material. Excellent value for money.

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

1 of 2101