Lightweight waterproof jacket for 10yo and 12yo

[MegBusset]

Really struggling to find a lightweight, packable waterproof for DS1 and DS2 (a tall but slim age 12 and 10).

They are bursting out of the Mountain Warehouse size 13 (biggest kids' size) but the smallest men's size (XS) is ridiculously big across the shoulders, chest and arms. Most retailers seem to stop their kids' sizes at 13 and seem to come up small. Anyone suggest a website / brand to try?

They need to be plain dark colours for school, properly waterproof, and not too £££!

Decathlon?

My 13-year-old has dare2b from go outdoors. It fits her really well, with room for a body warmer underneath if nippy.

Agree with Decathlon , they have a very wide selection at reasonable prices .

Would an XS or S women's one in plain navy or black work? The cheaper ones aren't 'fitted' IME.

Thanks, have ordered some from Decathlon in size 14-15, fingers crossed they fit!

Trespass