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M&S

Sienna Straight Leg Jeans

£25

£7.49

Colour

Out of stock online

Sale items

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 (12137)

4.3

67% Recommended this product

Mentions
08 January 2026Elizabeth L3
Verified Purchase

Love these!

Yes, I recommend this

A little looser on me than the Sienna slim and so comfortable. I wore them on a long haul flight no problem. Will be getting another pair in a different colour soon.

Reviewer Ratings

How did it fit?

A bit large

Length

Good

Value for Money

Excellent

Material

Excellent

Style

Excellent

Helpful?

Reviewer Ratings

How did it fit?

A bit large

Length

Good

Value for Money

Excellent

Material

Excellent

Style

Excellent

08 January 2026KH 14
Verified Purchase

Baggy

No, I don't recommend this

Always have m&s jeans but, these were a real disappointment. Extremely baggy, and too long (regular )returned.

Reviewer Ratings

How did it fit?

Large

Length

Value for Money

Poor

Material

Good

Style

Poor

Helpful?

Reviewer Ratings

How did it fit?

Large

Length

Value for Money

Poor

Material

Good

Style

Poor

08 January 2026Shoe mad
Verified Purchase

New jeans

Yes, I recommend this

Very good jeans nice fit make a change from leggings

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

08 January 2026Quality66
Verified Purchase

Great Quality & Price

No, I don't recommend this

As always with M&S clothing this product was comfortable,stylish ready for any occasion.

Reviewer Ratings

How did it fit?

True to size

Length

Good

Value for Money

Excellent

Helpful?

Reviewer Ratings

How did it fit?

True to size

Length

Good

Value for Money

Excellent

07 January 2026Jules Brown
Verified Purchase

Nice but far too small

No, I don't recommend this

Nice Jeans but way too small. I ordered the same size as I always have in similar m&s jeans, but these were no where near fitting, so I have returned them. Such a shame because m&s clothes have always been so reliable with sizing.

Reviewer Ratings

How did it fit?

Small

Value for Money

Average

Material

Average

Style

Average

Helpful?

Reviewer Ratings

How did it fit?

Small

Value for Money

Average

Material

Average

Style

Average

07 January 2026Louise2
Verified Purchase

Larger than previous pair

I ordered these jeans as I've had a pair before, but the sizing was completely different. These were too big and too long, even though I ordered short. I will be returning them.

Reviewer Ratings

How did it fit?

Large

Length

Value for Money

Excellent

Material

Good

Style

Good

Helpful?

Reviewer Ratings

How did it fit?

Large

Length

Value for Money

Excellent

Material

Good

Style

Good

07 January 2026
Verified Purchase

Great fit and look

Yes, I recommend this

These are the second set of three pairs of jeans that I’ve bought. I really like them. The last were nearly three years ago and I wear them all the time. They are a flattering cut and fit on me, and last well.

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

07 January 2026Catherine Woolley
Verified Purchase

Excellent

Excellent product Good quality Fits lovely Very comfortable

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

07 January 2026Rosalind Radford
Verified Purchase

Blue dye

Yes, I recommend this

The dark blue dye comes off the trousers onto my hands when I'm wearing the jeans - it should be a fast dye

Reviewer Ratings

How did it fit?

True to size

Length

Good

Value for Money

Good

Material

Fair

Style

Average

Helpful?

Reviewer Ratings

How did it fit?

True to size

Length

Good

Value for Money

Good

Material

Fair

Style

Average

07 January 2026lizzietwv
Verified Purchase

Great length

Yes, I recommend this

Length superb extra long. The right amount if stretch.

Reviewer Ratings

How did it fit?

A bit large

Length

Good

Value for Money

Excellent

Material

Excellent

Style

Excellent

Helpful?

Reviewer Ratings

How did it fit?

A bit large

Length

Good

Value for Money

Excellent

Material

Excellent

Style

Excellent

06 January 2026BANNYB
Verified Purchase

Great quality and perfect long leg fit in black

Yes, I recommend this

Love Sienna Straight Leg Jeans, last bought black long leg. Perfect fit and amazing price.

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

05 January 2026Salucat
Verified Purchase

Good quality purchase, at a very reasonable price

Yes, I recommend this

Well made and styled jeans - love the dark indigo colour. Comfortable as they are stretchy.

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

05 January 2026Helen125678
Verified Purchase

Poor quality anf very thin material

No, I don't recommend this

I have ordered these jeans before and was quite pleased with them. This time around however, they were much poorer quality and very thin, maybe M&S have changed supplier. I have since returned them.

Reviewer Ratings

How did it fit?

True to size

Length

Excellent

Value for Money

Poor

Material

Poor

Style

Average

Helpful?

Reviewer Ratings

How did it fit?

True to size

Length

Excellent

Value for Money

Poor

Material

Poor

Style

Average

05 January 2026CarlaS
Verified Purchase

A lovely product

Yes, I recommend this

I really like my new jeans. Initially I worried that they might be too tight, but they stretch beautifully and adapt to one's shape.

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

05 January 2026Zlaw
Verified Purchase

Great fit and very comfy!

Yes, I recommend this

Great jeans, very comfortable and a good fit. Lovely shape.

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

05 January 2026Maureen 333
Verified Purchase

Sienna woman's jeans

Yes, I recommend this

Extremely comfortable to wear & great length is perfect especially petite

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

05 January 2026chachy
Verified Purchase

Just the job

Yes, I recommend this

I normally wear slim jeans but after knee surgery I couldn’t. I was hoping that the straight jeans wouldn’t be too baggy but they are perfect.

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

05 January 2026Elizabeth Joan
Verified Purchase

Great quality.

Yes, I recommend this

Great jeans. Perfect size and fit. Always purchase these online and can be sure of their sizing and quality.

Reviewer Ratings

How did it fit?

True to size

Length

Good

Value for Money

Excellent

Material

Excellent

Style

Good

Helpful?

Reviewer Ratings

How did it fit?

True to size

Length

Good

Value for Money

Excellent

Material

Excellent

Style

Good

04 January 2026Alfie001
Verified Purchase

Good fit

Yes, I recommend this

Good fit & not to skinny, just how my wife likes them

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

04 January 2026Voicedq
Verified Purchase

Sizing issues

Yes, I recommend this

Perfectly good black straight legs- but one of the two different coloured same sized jeans didn’t fit me

Reviewer Ratings

Length

Average

Value for Money

Good

Material

Good

Style

Good

Helpful?

Reviewer Ratings

Length

Average

Value for Money

Good

Material

Good

Style

Good

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