Difference between thermal and baselayer?
 

I always though they are the same thing but apparently not. So what's the difference? Is the material they are made out of? Or is thermal more tight around your body while base layer is more lose?

Base layer is long Johns

Thermal is thermal

I think it's the other way around

Thanks for the answer so I am guessing you would want to wear your themral and then base layer and what ever on top.

For me, base layer is anything that wicks moisture away from the body. Thermal layers can also do this. So it'd be easy to confuse the two.

Thermal layer is anything that has insulation. I've never use the term thermal layers very much so I'm not familiar with them. Here's my take on it. I think long johns, which can be made of cotton can be thermal layer but doesn't take away moisture. Cotton actually absorbs moisture really well, so it's a terrible if you're going to sweat out or be in the rain.

looked up some more info on it.
https://en.wikipedia.org/wiki/Layered_clothing

I think the thermal layer could be a mid layer according to the wiki.

Thanks I been using some thermal long sleeves but I always though I should use a base layer first. Seems like that's not needed. From reading wiki it seems the base layer is more for sports.

Pretty much. Anytime you'll get wet or sweat, is when you'll want a base layer.

For example, working outside; landscaping or construction, it's nice to have a thermal base layer like Helly Hanson has at sports checks.