DD is tall and slim. Each time I size up her leggings so they reach her ankles, they fall down because the waist is too big. I've tried DIY elastic adjustments but tend to make a mess of the waistband and it sits slightly wonky after that!
So far, I've found Polarn O Pyret (expensive, can't find any her size second hand so far, and the colour I want has been out of stock online for ages even if I did want to pay that much) and one single pair in Morrisons (not an ideal colour but I've ordered them anyway).
Are there any other brands I can look at? I need a few bigger pairs now and I suspect it'll be an ongoing problem in future, too!
PS not jeans/jeggings/joggers - more of those have adjustable waists, just looking for (ideally navy) leggings just now. 