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M&S

Sienna Straight Leg Jeans

£26

Colour

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 (11944)

4.3

67% Recommended this product

Mentions
01 December 2025janandjock
Verified Purchase

Perfect

Yes, I recommend this

Comfortable to wear. The black colour can be worn dressed up or down for different occasions.

Helpful?

01 December 2025Groovy Lesley
Verified Purchase

Sienna straight leg jeans

Yes, I recommend this

Very nice jeans. Good quality. Good fit. I've bought them before and this is a second pair as they are so nice

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

01 December 2025ajc2104
Verified Purchase

New favourite trousers!

No, I don't recommend this

My Mum needed new jeans. She had a pair of Sienna jeans already and had worn them to death. This was an easy choice… the grey colour seems to be discontinued. That would have been even better, but the light blue are now Mum’s new favourite trousers.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

01 December 2025Jac2061
Verified Purchase

Good Quality Comfortable Jeans

Yes, I recommend this

Good well fitting jeans at a competitive price. Quite lightweight, really comfortable and stretchy.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

30 November 2025Elegina
Verified Purchase

A superb fit.

Yes, I recommend this

I have been looking for a perfect fit pair of trousers for so long and these were a perfect fit. I am thrilled to bits.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

30 November 2025LAVALLA
Verified Purchase

Comfortable Jeans

Yes, I recommend this

I was really pleased by the soft textured denim before even putting them on. But once on, I was very pleased by the fit, colour and regular length leg.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

30 November 20251975goodtimes
Verified Purchase

Sienna Straight Leg Jeans

Yes, I recommend this

Great jeans, which I buy all the time, in various different colours. These fit me well and wash well, that's why I buy them. The only problem is the mid blue jeans always start fraying in the crotch area. They last me about 2 years. This doesn't happen with the deeper blue or the very, very pale blue. I don't know why this is.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

30 November 2025oscarsmummy
Verified Purchase

Good value for price

Yes, I recommend this

True to size and comfortable. I have several pairs of these and only criticism is that the material appears to be getting thinner with the newer ones

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

30 November 2025Velikova
Verified Purchase

Perfect

Yes, I recommend this

Wanted straight leg jean that didn't cling to my calves - these fit the bill (Size 16 - legs not slim). Also ordered more expensive Per Una straight leg size 16 - these were baggy.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

30 November 202555Sun
Verified Purchase

Great fit

Yes, I recommend this

I am 5’4 tall and find the short trouser to be the right length in these Sienna jeans. The colour is suitable for night or day wear.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

30 November 2025Tat head
Verified Purchase

Sienna Straight Leg Jeans

Yes, I recommend this

Very nice jeans. Have bought before and always fit perfectly. Definitely would buy again.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

30 November 2025Chris grasso
Verified Purchase

Lovely jeans but….

Yes, I recommend this

I love these Sienna jeans, very comfortable but why is the regular length a long length and the Regular is now equal to the short length . Please can you do your trouser lengths accurately.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

30 November 2025JAR19
Verified Purchase

Jeans

No, I don't recommend this

Disappointed after wearing for just one day they’ve gone baggy round legs.

Reviewer Ratings

How did it fit?

A bit large

Helpful?

Reviewer Ratings

How did it fit?

A bit large

30 November 2025Bunnypops
Verified Purchase

Very comfortable

Yes, I recommend this

Already have a pair in white size 8 petite but had to size up to a size 10 petite in the blue??? Anyway they are a good fit and very comfortable for an every day wear.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

30 November 2025Jolidi
Verified Purchase

Quality control on size is awful.

No, I don't recommend this

Depending on what colour you buy, light blue (regular demon) size down, dark blue size up. Quality control on size is awful.

Helpful?

30 November 2025Jacqx A
Verified Purchase

Super everyday quality jeans

Yes, I recommend this

Super comfy, flattering true to size fit, just enough subtle stretch for those bloated days, keeps their shape, exceptional quality with depth of colour. Perfect length options available. I'm 5'10" with longish legs & the 'long' option is spot-on for me. Another superb pair of hard-wearing, long lasting jeans from M&S.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

30 November 2025RWJ
Verified Purchase

Fantastic wardrobe staple

Yes, I recommend this

Great fit, wash well, fantastic fabric quality. Slight difference in size across the colours but still true to size

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

30 November 2025DianaM1970
Verified Purchase

Great pair of jeans

Yes, I recommend this

I love the fit of these jeans! They are comfortable and look great on. I’ve washed them a couple of times and the colour hasn’t faded at all.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

29 November 2025Mojo30
Verified Purchase

Blk Jeans

Great fit, so comfortable & perfect length always buy these jeans in most colours

Helpful?

29 November 2025Mrs McGrath
Verified Purchase

Great jeans.

Yes, I recommend this

Love these jeans. Got two Pairs now. So comfortable to wear. Love the stretch. Hold their shape well.

Reviewer Ratings

How did it fit?

True to size

Helpful?

Reviewer Ratings

How did it fit?

True to size

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