A great buy!
We try to keep the cost of skiing with kids down as much as we can. Along with picnicking we look for versatile clothing.
In the summer we bought an oversized waterproof for our 11 year old. It's just been brilliant. A light weight, summer waterproof, but he's also worn it throughout the ski season.
Whatever the weather. It's kept him dry. On cold days he's worn warm layers underneath and on spring ski days it's great just as a windproof.
This particular waterproof was bought from Quechua (Decathlon, UK)