I don't know why I always forget that Amazon sell clothing, and they have such great bargains for kids clothes too. At the moment they have Baby and Children's Coats with up to 60% off, and loads of them are children's favourite characters like Spiderman, Disney Princess and Hello Kitty.
Prices start from a very low £6.30, with lots of then around £10 to £12. Some are warm winter coats, and other are lighter jackets that would be suitable for spring or autumn.
There are 56 different styles on this offer, but it must have been on for a while and just got missed as it finishes on Friday 6th February.
The baby coats have sizes from birth, and the childrens ones vary according to style. I'd be tempted to go for one just above the £10 price in order to qualify for free delivery as well!