Marks and Spencer shoppers were impressed with a pair of 'fabulous' jeans spotted online but some were 'gutted' over the sizing options.

The high street favourite regularly keeps shoppers updated on its stock and product launches via social media, with a recent Instagram post causing a stir online.

To its 1.8million followers, M&S shared a photo of Marks and Spencer 'insider' Sam sporting a pair of wide-leg denim jeans with a plain white t-shirt tucked in.

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Sam finished the look with a pair of wedges with tan straps.

Captioning the image, M&S wrote: "How we feel stepping into a restaurant for the first time in months knowing our outfit is on point. @marksandspencer_sam ".

The outfit racked up more than 5,700 likes in the first 24 hours it was uploaded to the popular platform.

Karen said: "Bought these Saturday! They're gorgeous!"

Kim said: "Flares making a comeback."

Ellie said: "Love this!"

Lucy said: "I need these jeans."

One shopper commented: "Love the jean."

Kiley said: "Need those jeans."

Tanya added: "Fabulous jeans."

But some shoppers were unimpressed with the sizing range on offer.

Natalie commented: "Why don't these jeans come in short?"

Marks and Spencer replied: "Hi Natalie, these jeans only come in one (regular) length, but I'll let the team know you were interested in shorter ones! Denise".

Vanessa also replied to Natalie's comment and said: "I was thinking exactly the same thing!"

Louisa said: "You need to do these in short length, PLEASE."

Gaby said: "I'm a bit gutted. Purchased 'exactly the same' cut of jeans in the same size, 4 different shades and the fit is totally different. What's happening with your sizing!? Impossible to shop."

But Jill was a fan of the outfit and added: "A gorgeous look indeed."

Marks and Spencer have a variety of jeans available. You can view and purchase from M&S' selection of jeans via its website by clicking here.