trousers for (cloth-nappied) boy toddler

[TaurielTest]

Where can I find nice trousers to fit a toddler? He's in cloth nappies so has a bulkier bot than usual, but is otherwise slim with shortish legs. I just seem to be dressing him in dungarees all the time!
I don't want khakis or jeans really - I'd rather have bright colours like red or green than the usual sludgy colours.
Oh, and I can't stretch to a Polarn o. Pyret / Boden / Gap etc budget, and I'd love to order in euros from somewhere like Jako-O but can't afford that either .
Any suggestions?

American Apparel? Never tried them but have heard recommendations.
Look out for next-size-up cropped trousers too, they'll be full length. But maybe wrong time of year for that.

www.weenotions.co.uk

make jersey trousers. My son used to have a few pairs in red, green, bright blue etc.

H&M do adjustable waists on (nearly) all of their trousers - great for cloth bottoms. I even got jeans for ds2 there, they were great. And not too expensive, usually some bright colours. If he'll still fit in 12-18 from there (the sizing's quite big) it's cheaper in the baby section!

my cloth-bummed boy wears lots of Sainsbury's jeans .. they seem roomier than the expensive stuff... but you want colour ... um... Primark?

Thanks for tips everyone, you have spurred me on.

I like my DS in leggings - when in nappies they stretched nicely over his cloth bot. Stardust do funky ones in red/black, blue/black and yellow/black stripes. V good quality too