Heated grips are great, but not being wet is better.
Don't get a Dellow then!
Mind, it's mainly the right shoulder and elbow that gets wet in a Dellow....[for a passenger, it's the opposite].
Left leg below the knee gets boiling hot....slow moving traffic to be avoided, as rain water drips off the bottom of the steering wheel.....which is right above...you-know-where!
I tended to carry one of those big bright brollies for when coming across stationary traffic was likely....In rain, I could put it up whilst sat in the car, cooking my left leg...
For me, as a tall old fella with ver stiff leg joints....the Dellow actually provides shelter under the the scuttle for most of my lower body.
Aside from the drips from the various small holes scattered around, intended for stuff that no longer is present.
The main source of wetness, however, occurs when flying through puddles.....the floor is far from all encompassing..with many holes, slots etc!
Water shoots upwards from various corners of each floor half, at high speed..
Negotiating flood water of up to more than a couple of feet deep involves fairly slow driving, in order not to soak one's bum....[All the essential injin lektriks are high up..the benefit of a sidevalve engine...]
Can really only be driven wearing plimmies, however...