There's a cracking deal on this Bear Grylls Kids Jacket at Craghoppers right now. It was £45, but it's now in the sale for £13.50, and if you enter the code EXTRA10 at the checkout you get it for £12.15!
This jacket is waterproof and comes in sizes between 5 and 13 years, and all sizes are in stock at the time of writing. There are two colours in this style, but only the blue/black one is reduced. If you want the grey it's still £45.
Delivery will add another £3.95 to your order, bringing the total to £16.10 which is still a fab price for a decent waterproof jacket for kids.
There are other items in the sale for kids too, so it's worth looking while you're on the site, as prices with the code start at £3.38 for Bear Grylls Kids Clothing, and there are loads of other branded outdoor items too.
Thanks to uglybeautyqueen @ HUKD.