I tried a Pendleton shirt but found it itchy and binding in riding positions, and hard to control its insulating properties, compared to button up or zip up knit wool sweaters lie the nice Wooly Warms Riv used to sell. As always, mileage varies.
As for anoraks, if you mean the conventional no-placket design, I'd consider looking for something with buttons or zip to allow heat control. I will easily sweat even in temps well below freezing if even slightly overdressed.
Someone very kindly gave me 2 old school Italian wool cycling jackets with nylon panels; the very best design, IMO, since knit wool breathes and is comfortable even fully zipped over a much wider range of temperatures than other materials, while the panels keep the wind chill down.
But speaking of Varusteleka.com, I did buy a wonderful, very thick wool sweater with high, full-zip placket mock-turtle neck design and long sleeves with thumb secures for riding under a thinnish shell at very low temps (and for other cold weather use, too).
I have an Endura riding jacket, zip-off sleeves, that I'll once again offer for sale shortly. It's made from semi-insulating (ie, not just a shell) and somewhat elastic fabric, and well cut, designed, and stitched, but just awkward when the temps rise by 10 or 15* as they do often here during a cold morning ride. The wool + nylon panel jackets are just more versatile.