I'm really struggling to find school trousers that fit DS.
We got the 4 year old ones from Sainsburys that are half-elasticated with adjustable waist band inside and they're still pretty roomy on him, and only just the right length so will be too short very soon. The 5 year old size were absolutely swimming on him. You could pretty much fit two of him in the trousers.
The School uniform people do full elasticated waistband trousers but they're 7 pounds each! Anywhere else do them? I can't find them. Or any other recommendations for trousers that work well and very slim-hipped, tall boys?