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

Product code: T764768L

About this style

Slim-leg school trousers designed for growing children in a practical two-pack. The adjustable waist ensures a comfortable fit, while crease-resistant technology and stain-repellent finish keep them looking smart throughout busy school days. With hems that can be extended by 3cm, these longer-length trousers adapt as they grow.

Sizes from two to six years have an elasticated waistband. Sizes from six to 10 years have an elastic back with a hook, bar and zip, while sizes from 10 years have a hook, bar and zip. The clever grow-proof hems can be unpicked and pressed for an extra 3cm of length when needed, helping trousers last longer as your child grows.

Details & care

Style

Slim leg

Safety Warning

Keep away from fire

Features

Stain & Weatherproof

a durable finish that repels water and stains

Crease-resistant technology

Hem can be unpicked and let down a further 3cm to allow for growth

An adjustable waist promises extra comfort

Composition

65% polyester, 35% viscose (exclusive of trimmings), Pocketing (pocket fabric composition) - 100% polyester

Care

Wash at 40°C delicate

Do not bleach

Tumble dry medium temperature

Iron at medium temperature

Professional dry clean

M&S

Online only

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

€14 - €22

Colour

Waist

Inside Leg

Also available in: Standard Length
Free standard delivery over €75

Reviews (100)

4.7

81% Recommended this product

Mentions
04 September 2026789tan

Great to have longer length

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Longer length is definitely needed at this age and these fit great! Took me a while to work out the sizing structure on M&S trousers - after age 13/14 size the normal trousers don’t actually seem to get longer so the only way to solve this for a growing boy is to buy the longer length ones. Too bad it’s a struggle to keep in stock though and these seem to sell out within a handful of days once back in.

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Excellent

Style

Excellent

Material

Good

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Excellent

Style

Excellent

Material

Good

04 September 20262979

SUPER for taller boys!

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

We were in store and my son was struggling to find trousers that fit in length and waist, the kind staff member told us about these online options..which were perfect for my tall, lean son! Plenty of growing space too.

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Excellent

Style

Excellent

Material

Excellent

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Excellent

Style

Excellent

Material

Excellent

03 September 2026Granma2805

Great Product

Originally posted on marksandspencer.com (UK)

Excellent fit for my tall slim grandson without having to purchase adult sizes. Material also great quality and has a nice feel to it - not rough to touch - he has ADHD & is sensitive to the feel of items if clothing.

Reviewer Ratings

How do you feel about the size?

A bit large

Helpful?

Reviewer Ratings

How do you feel about the size?

A bit large

01 September 2026Nickola

Fast delivery

Very fast delivery to the store and perfect sizing

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Helpful?

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

31 August 2026DoD27

Perfect Fit

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Even description says waist does not come with elastic for bigger size, the size 15-16 had the elastic that can be adjusted with the buttons, for even a better fit. Great Material. Thanks

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Excellent

Style

Good

Material

Good

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Excellent

Style

Good

Material

Good

31 August 2026travisian

Always great

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

M&S school clothes are a go to for us. These trousers in particular look and feel great quality. Our son will be looking smart on his first day back to school!

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Excellent

Style

Excellent

Material

Excellent

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Excellent

Style

Excellent

Material

Excellent

29 August 2026Ellebeeg

Great to have the length but terrible fabric

The fabric is not great, very scratchy and quite a wide weave, if you hold it up to the light you can see the weave if that makes sense. They seem to be the only trousers on teh market that are a suitable length for my child so i had to keep them

Reviewer Ratings

Quality

Fair

Value for Money

Good

Helpful?

Reviewer Ratings

Quality

Fair

Value for Money

Good

29 August 2026Nannie debs

Great adjustable waist and longer length

Originally posted on marksandspencer.com (UK)

Great option for my grandson who is tall but very slim great hem and adjustable waist at good price

Helpful?

29 August 2026Smurf08

Great quality

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Have ordered these trousers a few years running. Great quality. Last throughout the school year.

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Excellent

Style

Excellent

Material

Excellent

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Excellent

Style

Excellent

Material

Excellent

17 August 2026Dunne8

Scratchy trousers

Awful fabric. I washed them to see if the fabric would soften and become less scratchy. It did not and now I cannot return them. Complete waste of money!

Helpful?

10 August 2026Sarahcheese

Perfect

Originally posted on marksandspencer.com (UK)

Perfect for those tall teens with a smaller waist.

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Excellent

Style

Excellent

Material

Excellent

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Excellent

Style

Excellent

Material

Excellent

03 August 2026Neilss27

Awesome

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Have a really tall 14 year old. These trousers are great & last him the year through school with the extra length.

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Excellent

Style

Excellent

Material

Excellent

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Excellent

Style

Excellent

Material

Excellent

29 July 2026name2026

much wider leg than skinny fit... apparently

Originally posted on marksandspencer.com (UK)

Ordered these thinking "slim" and "skinny" couldn't possibly be that different. My teenager looked at me as if I'd bought Victorian pantaloons. Apparently there is a HUGE difference. He didn't even try them on. Sent them back before I was reported to Childline.

Reviewer Ratings

Value for Money

Good

Material

Excellent

Helpful?

Reviewer Ratings

Value for Money

Good

Material

Excellent

26 July 2026Jillibean1234

Great quality and longer leg length is a godsend!

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Not sure if I'm reviewing the extra long or long length trousers but the extra long were perfect for my 11 year old slim son who's got very long legs! They are pretty much regular fit on him so not too skinny fit as his high school wouldn't allow these! Good value for money as I've had these in the past and they've lasted ages.

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Excellent

Style

Excellent

Material

Excellent

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Excellent

Style

Excellent

Material

Excellent

24 July 2026Yido79

Longer trousers

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Great they do longer trousers. They wash and iron well.. always buy marks trousers. But, why do the crunch part get so tight! Always had to buy much highter size trousers and take them in loads and the sides to get a comfortable cruch. Sons only 13 and i got a 17-18years! Need to work on this.. always been the case!!

Reviewer Ratings

How do you feel about the size?

A bit small

Value for Money

Excellent

Style

Excellent

Material

Excellent

Helpful?

Reviewer Ratings

How do you feel about the size?

A bit small

Value for Money

Excellent

Style

Excellent

Material

Excellent

23 July 2026Jane1504

Good quality

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

Good quality trousers easy to wash & iron add bonus is double hem

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Excellent

Material

Excellent

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Excellent

Material

Excellent

22 July 2026MrsGoodShopper

Excellent for slim childern

Originally posted on marksandspencer.com (UK)

Great for slim boys. Most trousers are way too big on the waist and hips for my grandson. I bought a younger age with longer legs and they fit perfectly. Glad m&s are still doing this range which I first bought a few years ago for my grandaughters.

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Excellent

Style

Excellent

Material

Excellent

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Excellent

Style

Excellent

Material

Excellent

16 July 2026TubbyH

Great buy at a very good price.

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

We always buy our Grandsons school trousers from M&S and as usual they are good quality, hard wearing and stylish.

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Excellent

Style

Excellent

Material

Excellent

Helpful?

Reviewer Ratings

How do you feel about the size?

True to size

Value for Money

Excellent

Style

Excellent

Material

Excellent

12 July 2026Frankie2105

Great quality, great price

Originally posted on marksandspencer.com (UK)

Yes, I recommend this

I bought these for my 11 year old son, he is very slim so we always opt for a slim fit. The trousers are great value and quality for a school trouser. Only reason i didnt go for 5 stars was i found them still a little bit in the waist even fully adjusted but my son would be quite petit in the waist.

Reviewer Ratings

How do you feel about the size?

A bit large

Value for Money

Excellent

Style

Excellent

Material

Good

Helpful?

Reviewer Ratings

How do you feel about the size?

A bit large

Value for Money

Excellent

Style

Excellent

Material

Good

06 July 2026ruth9

Perfect

Yes, I recommend this

Great quality trousers. Good value for money & look good too

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

Helpful?

Reviewer Ratings

Quality

Excellent

Value for Money

Excellent

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