Show me your winter underwear

[fazersharp]

I have taken this from the "what did you do with your Fazer thread so not to derail it.
I don't do rain but I do - do cold and been getting away with lots of thin layers, this lot


The blue is a thin camping mat -crap for camping that fits the chest and wraps all the way around to my back and is both insulating and windproof.
The kidney belt as well as being extra lower back protection is also very good at keeping your core warm.

It has been pointed out to me that I should invest in a vest

Honestly Fazersharp, mate. Learn to spend a bit of money where your favourite things are concerned (e.g. riding your bike). Get yourself one of those Pertex wind shirts, like the cyclists use. Thin as a fag paper, weighs nothing, packs down tiny in a little stuff sack. Put it on under or over a pullover, makes one hell of a difference without bulking you out. If you need to be warmer still, try a down or primaloft jacket under your bike jacket - some have a Pertex outer layer, so they are very windproof, and come in different weights, so you still don't need to bulk up too much. Wind chill is half the battle.
This is the top I use:
https://www.jackson-sports.com/en/gb/Mon...pgQAvD_BwE
Yeah, I know, pricey  :eek  but I got mine for £25 in a sale, so look out for such.
And if I need to be even warmer, I use one of these:
https://www.climbers-shop.com/10900842/p...acket.aspx

I don't want heated stuff just as thin a possible with wind stop to replace the 3 layers and the camping mat, good suggestions so far from the trimmer but looking for something that combines both. Like this https://www.evanscycles.com/endura-pro-s...t-EV305964 but I really dont want to pay that much -otherwise I will carry on with my stupid layers as they do work.