Waterproof over-trousers (Regatta Stormbreak) and a cheap rain jacket. I was contemplating a poncho, but ultimately settled on the rain jacket as it’s more portable.

I had a nice breathable rain jacket before, but the waterproofing got ruined after I washed it with the wrong stuff.

Current bike is non-electric, but has front and rear fenders to keep most of the muck away from my shoes and my back. My previous bike had no fenders and uh… there was always a long brown line down my back after arriving at work wet 😅

Breathable waterproof shell from outdoor gear companies (Gore-Tex or similar), including both a jacket and pants. Waterproof shoes from Vessi or similar. Water proof or resistant cycling gloves.

Everything should be waterproof except your face. Haven’t found a good solution for that yet but it doesn’t bother me too much.

Most bikes do fine in rain but fenders are highly recommended so you don’t get covered in grime.

If you have glasses that can get ruined in the rain, maybe look into some of the ebike helmets with eye protection, like this one from Lazer or this one from lumos. There are probably others from similar brands, these are just two I know of off hand. Likewise, for rain, there’s ponchos/raincapes. They’re more for bikes, but they should be fine for scooters, too. If ponchos are too dorky, a good pair of rain pants and a rain jacket will be useful not just for your scooter, but day to day outdoor stuff in the pnw.