I’m struggling to find some jeans for a very slender child. Age 9-10 fit her waist and hips but are too short. I really don’t want to spend a lot on them as she will ruin the knees as she’s always grubbing around on the floor with her slime concoctions 
Tesco and Matalan are too big age 10-11, not looked in Asda and our local Sainsbury’s never has much stock.