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Boys' Slim Leg Longer Length School Trousers (2-18 Yrs)

Product code: T764791L

About this style

School trousers designed for all-day comfort with a modern edge. Slim leg fit with added stretch keeps you looking smart from first bell to home time, while the crease-resistant fabric and Stain and Weatherproof finish mean less maintenance for busy mornings.

Slim Leg Shape – a flattering trouser that is narrower in the leg.

M&S

Online only

Boys' Slim Leg Longer Length School Trousers (2-18 Yrs)

€10 - €17

Fit
Colour

Waist

Inside Leg

Also available in: Plus Waist and Slim Waist
Free standard delivery over €75

Reviews (330)

4.6

77% Recommended this product

Mentions
10 February 2026tony74

Perfect fit for my gangly teenager

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Finally found some trousers that fit my son. Had to go a couple of years up in size but the longer leg is great.

Reviewer Ratings

How do you feel about the size?

A bit small

Helpful?

Reviewer Ratings

How do you feel about the size?

A bit small

01 February 2026West22

School trousers

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Bought for a very tall teenager. Perfect fit. Waist fit his very skinny frame

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

27 January 2026Hellief

Perfect school trousers

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I've been buying these for my boys for years. Great quality - always make use of the additional hem so they last a bit longer through growth spurts. Adjustable waist is ideal when you have children with long legs for their age.

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

25 January 2026SMcM1

Great fit and quality

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

My son is 13 and 6ft 3in. I did take these down (there are extra seams) so they were even longer and should last. Great quality and price.

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

25 January 2026Donny boys

Perfect for my lad and lovely quality all around

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

My lad is pleased. He's very tall and skinny for 16 and this particular trousers fit him perfectly. Got elasticated waist and decent material. I have recommended to other people i knew and really chuffed with it.

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

17 January 2026Smum22

Brilliant

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

Great quality and fit . My tall , slim build 11 year old son says they’re just right

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

12 January 2026SJMreviewer

great quality

Originally posted on marksandspencer.com (UK)

fit perfect, we struggle to get trousers for our tall but very thin teenager

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

08 December 2025AnamikaPawar

Perfect trousers

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

My son is 17yrs , 6'2" tall and slim build. These are the only trousers that fit him like a dream. And what's more impressive is M&S designers have thought through every pain point/requirement to make the perfect school trousers there can be. They are stain and weather proof , crease resistant , have an adjustable waist ( super helpful, In my opinion all trousers should have this ) and icing on the cake is that they have grow proof hem . And the cost doesn't hurt the pockets at all. They have nailed it.

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

30 November 2025Smiles100

Good school trousers

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

These are great value school trousers. Good fit and length for a very tall and slim 15 year old. Seem to wash well.

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

24 November 2025EDun

Great quality

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Well made unlke some of the multi pack school trousers

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

21 November 2025Princess Yeninga

Fantastic quality

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Fits well and is great quality. Longer length is the best I’ve seen so far.

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

18 November 2025Ccc2

They do the job

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Nice pair of trousers, shame the material isn’t as good as last seasons. But they’re ok do the job.

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

18 November 2025Momx2boys

Lovely fabric.

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Perfect fit as described. Lovely material because some of the other M&S boy styles are horribly synthetic which I returned wheras these are brilliant. Highly recommended. This is the second time buying this style. Both my boys have it. Will buy again, no hesitation.

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

14 November 2025Sumo33

Repeated Purchase

Originally posted on marksandspencer.com (UK)

I am overly satisfied with these pair of school trousers. I buy them every years for both of my sons.

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

11 November 2025Zac26

Brilliant quality

Originally posted on marksandspencer.com (UK)

No, I don't recommend this

Bought for school, these are hard wearing and very comfortable

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

08 November 2025Limpet67

A School Staple

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I've been buying M&S school trousers for a decade. That should really tell you all you need to know. Good quality, last a full school year, adjustable in both the waist and the leg, which is great for growing kids. They wash and iron well and keep their colour. I have noticed however, the material in the 16-17yr old trousers are different from all our previous trousers, I hope this will not mean a difference in quality, time will tell.

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

07 November 2025CK19

Good quality trouser

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

These are great trousers. Fit is true to size and quality feel. Also a great price

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

06 November 2025JVMc

Great for long legs and slim waist!

Originally posted on marksandspencer.com (UK)

Perfect school trousers for a tall and slim boy. We have x2 more years left at school so hopefully M&S will consider even longer ones for next year-pls!

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

03 November 2025Dee Dee 01

Great quality, colour and length

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Great to have trousers that cater to tall boys. My 15 year old is 15 and 6”3. The extra hem length is a great extra allowance and will see him through year 11.

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

28 October 2025ghrat

Great fit

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Excellent fit for tall slim 12 yr old. Lucky as were out of stock earlier

Reviewer Ratings

How do you feel about the size?

True to size

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

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