Beach cover up for 3 year old boy?

[Madigan]

I am looking for kaftan-type cotton/linen cover ups for my 3 year old son for our hot summer holidays - cannot fine them anywhere - any ideas where I might find some?

Why not a uv sunsuit instead? Like a wetsuit but much lighter, with spf50. Amazon has them.

seconded - cotton/linen useless against sun if wet or loose weave.

sunsuit and 'foreign legion' hat the way to go.