M&S Collection

Sienna Straight Leg Jeans

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Model Details

  • Model Height: 5ft10.5"/179cm
  • Model is wearing size: 8


Perfect for those busy days when comfort is key, we’ve made these super soft jeans in our best fit ever, so that comfy all day wear doesn’t come at the price of style. These women’s jeans are crafted with plenty of stretch so they flatter the figure with a fantastic fit around the waist, while an authentic denim wash gives a sleek finish. Less water has been used to produce this jean than conventional fabric dyeing. All the cotton for our denim is sustainably sourced. And always will be.

  • Product ID: T57/7570B

    Fit and style

    • Product Style: Jeans
    • Straight fit
    • Button and zip fastening
    • Mid rise
    • Added stretch
    • 83% cotton, 15% polyester and 2% elastane (exclusive of trimmings)
    • Machine washable
  • You may return unused products within 90 days of purchase.

    How to return:

    1. FREE returns to stores. The select M&S click and collect stores can be found here

    2. Self-postage return to the UK. Return your parcel at your own cost through your preferred carrier. Print your returns label and note here.

    FREE Delivery to Store: 3-4 working days. This delivery option is not currently available.

    EXPRESS DELIVERY: 2-3 working days. FREE for orders over £75, otherwise £5.99.

    Standard Tracked Delivery: 3-4 working days. FREE over £50, otherwise £3.50.

    Learn more

Sienna Straight Leg Jeans is rated 4.1 out of 5 by 1456.
Rated 5 out of 5 by from Best White Jeans Ever! Over the years i have bought a few pairs of white jeans and i will admit some have been a disaster. These white jeans are fantastic the material is thick and because of this does not show every lump and bump. I am a generous size 16 and these jeans fit very well and are true to size. I'm 5'8' and i bought a long and also a regular and the regular is the best length. There is just about the right amount of stretch in these jeans and they do not go baggy after one wear. I haven't bought in any other colour so i can't comment on them but if you want white jeans that do not make you look like a bag of spanners these are the jeans for you.
Date published: 2020-02-09
Rated 3 out of 5 by from Size dimensions have changed - much smaller fit. I bought Sienna (14Long) last year and they were perfect, but quickly went out of stock. Once back in stock, this June, I bought two more pairs, same size, only to find the fitting dimensions had changed. The body of these jeans is now two inches shorter, as is the leg length, plus the leg width is now much narrower, resembling a slim-fit more than a straight leg-fit. I compared then to my original purchase of Sienna jeans and the change in size dimensions, of this new batch, is quite surprising. Hence, the new stock of Sienna jeans does not fit as well as the previous (June 2018) ones did. Which is really disappointing.
Date published: 2019-07-10
Rated 3 out of 5 by from Average garment fair price Needed in a hurry, these jeans were a good fit & good length, size 12 regular, material is soft & quite heavy. Jeans have a distressed look to them which is not clear on line, had I not needed them in a hurry I would probably returned them. Whilst initially a good fit, after wearing them on a 9 hour journey I was disappointed that they had stretched considerably & were a bit baggy at the knee, I therefore had to wash them again before wearing. Will now need to wear a belt as they haven’t gone back to their initial fit. They are however a much better product then some peruna jeans I ordered at the same time which cost almost twice the price.
Date published: 2019-10-17
Rated 4 out of 5 by from A Perfect Combination of Style and Fit Thank goodness for for a pair of jeans that are not skin tight nor too baggy! Being a size 16/18 I do not want to wear a skin tight jogging style jean which seems to be the norm, nor wear the overly baggy 'boyfriend' jean. These jeans are a perfect mix of following your body shape so you look leaner in the leg and hugging and lifting in the bottom/tummy area where I need the sliming factor of the stretchy fabric without having my circulation cut off. They wash well, keeping colour and shape and with the stretch in the fabric, I no longer have to perform 'just washed jeans yoga' before putting them on. Loved it so much I have bought a pair in all the shades!
Date published: 2019-11-01
Rated 3 out of 5 by from Sienna Straight leg jeans Due to the amount of stretch in these jeans I actually fitted into a size smaller than usual. They fit well round the bum but they didn't hang properly from the knees down. Due to the extra stretch, they clung a little too much to look nice for straight leg jeans - fine if you don't have calf muscles but if you have shapely legs or do a lot of exercise, I wouldn't bother with these. I much prefer last year's straight leg jeans which didn't have a much stretch and look like straight leg jeans. I returned these jeans and as I'm only 5ft tall, I ordered the ankle grazer jeans as they aren't so stretchy round the calf and hang properly.
Date published: 2020-04-01
Rated 5 out of 5 by from Fabulous comfortable These jeans are Brilliant for me they are comfortable ,fit Great. Not sure what has happened to length , I used to be just fine with REGULAR length , But now they are Too long and have to go for short length, ( no I haven't shrunk that much yet !!!!) But am Very happy with my jeans can and do wear them all day no problems. Highly Recommend , I Always get my jeans from M&S as they never let me down. I sometimes have problems buying two or three pairs at one go , as rarely have my size in more than one pair, but usually Staff are Very Helpful and I can order them . Big Thank you to M&S
Date published: 2020-02-13
Rated 4 out of 5 by from Great value jeans I have these jeans in black and dark indigo and find them really comfortable and exceptionally good value. I have always worn a regular length (being 5ft 6ins) but was very surprised to find these FAR too long, so I tried the short which were just right. My usual size is a 14 or 16 and in the Sienna, the 14 was ample. They are described as straight but I would say they are a fairly slim straight which would easily tuck into boots and good with flat pumps. A footnote; when I went back into store to stock up with a few more pairs, they were all too tight in the waist and didn’t feel the same! Is this due to different manufacturers M&S? If so, very annoying and makes me reluctant to purchase on line!
Date published: 2019-09-18
Rated 1 out of 5 by from M&S jeans are driving me mad! Having been unable to get the Sophia jeans that I REALLY love in the size and colour I want for MONTHS, I have sought to find an alternative, these being one of the latest that i've tried. Colour, fit and length were OK. However, the bottom of the hems looked like i've been walking around with them dragging on the floor for weeks! I my opinion, this 'feature' completely spoils the look of the item. Although there is a discreet label on the product itself saying that the rips and tears are part of the design, there's no real mention of this on the website - if there had been, I wouldn't have wasted my time or yours ordering them.
Date published: 2020-02-27
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