Warmest base layer bottoms

[Lukeduke13]

Looking to see what people consider a really warm base layer bottom. Wanting to add another base layer option to my kit when the temps get really cold

 

[Stache Attack]

Sitka core heavy weight in my use

 

[RADunfee]

Under Armour 4.0 are the warmest ones I have tried.

 

[medvedyt]

i did not find anything warmer than 2 layers ... one merino first to the skin then any polartec added to that. but that will not for walking or hiking hard very long ...

 

[Chromeslayer]

Firstlite Furnace

 

[Ryan_1129]

I’ll run merino base , stone glacier helio mid layer fleece waffle style material then de havilland, if it’s really cold or glassing I’ll throw on first lite puffy pants they are old, don’t remember what they are called