For the past decade I had just regular rain paints that would cover the whole
legs. Together with a rainproof jacket and rainproof shoes (or shoe covers)
this would protect me from the rain completely. However, it would not
necessarily keep me completely dry. Although the rain paints that I have
feature a membrane, one would still sweat in them.
In Bonn usually it does not rain very hard or very long. Also one often has a
gradual fade-in, which makes it hard to decide what to wear. If I put on the
rain pants too early I will sweat a lot, too late will have my pants wet
and then it does not make sense to put on the rain pants at all. Or I start
from home and it rains a lot, so I start with the rain pants. But five minutes
into the ride it stops raining and I am not sure whether it will start again
later. So I either keep it on and sweat, or take it off and get wet later. Or
take it off and put it back on. It is a hassle every time.
I've seen the Rainlegs product on the internet years ago, and every now and
then saw people using it. Eventually I had so much positive feedback from users
that I decided to buy my own pair. I got them in white reflective as I do not
want to ride around in neon yellow.
My experiences have been mixed, let me elaborate.