I bought an Aerostich Kanetsu electric liner. Thanks to the member who recommended getting a liner with heated sleeves. I recommend getting the thermostat, which is $70. I ordered the liner with the BMW-type connector, then got the BMW socket for it from Touratech. Thanks to the member who recommended them, though the instructions were in German I had a shop wire it in for me and it all works very well. Even if Spring has come to OH. StI can ride with just the Kanetsu liner in my Olympia airmesh jacket and it's perfect. I'll get Oxford heated grips for the fall to extend my riding season. Thanks again to the Forum for its advice.