I gotta tell you... there's no "one" gear. I've tried pretty much everything over the years and I'll give you my CURRENT stock of gear for myself. This is after decades of trying a lot of different stuff and I *wish* I "knew then what I know now".
I have an Aerostich that currently handles most of my riding duties. It's a good 30-80 degree, dry or wet solution.
Most days:
Aerostich 2-piece with back elipse
Gloves du-jour, including Olympia mesh things, Olympia Windtex, Gerbing or my Harley gauntlets.
Very Cold weather:
I use my Joe Rocket Ballistic 5.0 pants without heated liners (Yes, they're *that* warm).
Teknic Spyder jacket, mostly without heated liner (yes, it's *that* warm with the outer shell on it).
Gerbing heated gloves.
or (new this season because I just got it a few months ago)
The 'Stich with heated liners. We'll see. I don't have pant liners.
HOT weather (>85 and humidity):
Joe Rocket Phoenix pants (I'm sure there are better quality items out there; these fit me best)
Teknic Spyder jacket without the outer shell
Glove du-jour
In all weather I'm wearing either my Alpine Stars boots (waterproof, warm,

) or my thick-leather western boots. My feet never have been cold enough to worry over with either boot.