Recomend me some thermal kit to wear under my Aerostitch

[Frisky]

I am about to get a 'stitch 2 piece and need something warm to wear underneath.I have a widder heated vest but I am looking for a decent thermal top and trousers(not too dear!)
What do you use?
TIA Dave

 

[Mel]

Cant beat the Aerostich Unobtanium fleece top and leggings - I wear them with a t-shirt and when it's f'in' freezing' the heated vest between the t and the top. I've cooked my back in minus 5 plus windchill!