MyDD3 is skinny and although nearly 2 is fitting into 18-24month just, but the waist is always toooooooo big.She has just grown into her big sisters Boden bootleg sweatmaterial trousers and they fit good but none of her sisters other trousers of same age fit. Dont really want to buy more new Boden. Have tried her in Next and no good any reccomendations?