I’ve got 2 Alpkit Filo’s – an early one without the hood and one of the first hooded ones.
The material is DWR treated so will bead water off it to an extent but it is in no way waterproof. It’s stitch through contruction will mean water can easily go through the stitching and in steady rain the material will wet out.
Great jackets but if you want a waterproof down jacket you need to look elsewhere (and probably triple the price).
I’ve washed them both but I avoid washing them unless they are properly filthy. Tumble dried each time with a couple of tennis balls to stop the down from clumping and it worked a treat.