Waterproof breathable rain pants would be sufficient as well.
What to wear under non insulated ski pants.
Mid layer your mid layer is worn over your base layer and under your ski jacket and ski pants.
A single base layer works well for most conditions but for very cold weather you might want a second base layer under your ski pants or switch to a single heavyweight base layer.
For non insulated snowpants i wear helly hansen thermals that are for extreme cold and pajamas dont wear cotton.
So the above information applies to skiers snowboarders and general snow enthusiasts alike.
This year i wear north face freedom insulated pants and 20c thermals.
The base layer typically is the only layer worn under ski pants.
Although you may shed your mid layer on warmer days you ll find that in colder temperatures wearing a mid layer really cuts the chill.
As for the upper body you might also wear a mid layer over a base layer as well as a ski jacket.
Ski or snowboard pants or bibs.
You can add fleece pants underneath for greater insulation.
Mid layers typically are light to medium weight long sleeve shirts and light jackets or even technical t shirts.
There are various forms of insulation that are available but in regards to pants as opposed to jackets you ll most likely come across synthetic insulation however fleece and down insulations are also out there.
Insulated pants obermeyer womens warrior insulated ski pant.