DS has just turned 4 and starts reception in Sept. We've always had trouble finding trousers that don't fall down as he's so slim (probably more of a size 2-3 on waist). George, H&M and M&S trousers are all too big. Zara sometimes fit, but they don't have a school line.
Any recommendations for very very slim waist? He's not keen on a belt, though we may need to persevere with that...