School trousers for giant teen boys?

[CurlyhairedAssassin]

DS1 is 15 and probably about 6ft 1 or 2. For the last school year he’s been wearing age 16 school trousers from Sainsbury’s which have been great, but they’re probably a bit short on him now.

Anyone got any tips on the best shops to go for school trousers for him? I need charcoal grey. I tend to use H & M for his non school stuff as I refuse to pay for decent stuff when he’s grown out of in 6 months, plus he’s not at all fashion conscious so isn’t bothered about having the right brand. Although, actually, I assume his growth speed is slowing down now, and I don’t mind spending more on decent school trousers that he will wear every day, as he will get the use out of them.

I don’t rate M and S stuff now at all because their hems on EVERYTHING always seem to come down after a few weeks because they use that cheap machine stitch that is very loose and catches easily then just unravels. I had a Next pencil skirt which did the same thing so maybe their quality is going the same way.

My DS is 15 and been 6 1 since he was 14. He is slim in the waist and likes a skinny fit so I've been getting him trousers from Burtons the past 2 years and they have been great. They do different waist sizes and then different lengths and have quite a few skinny styles. They are not too expensive I think it's £22 each or 2 pairs for £40 but they have lasted him well x

I have a super skinny 6’2 15 1/2 year old son who is 36 inside leg.
Burtons or ASOS tall do men’s trousers for super skinny tall kids. Or if not super skinny NEXT might work. ASOS tall do next day delivery for £9 or something a year which is quite good with two tall tennage children.