Answer (1 of 7): It's a personal choice, I'm an outdoors sort of guy and I've tried pretty well everything in thermals for winter outside and I have settled on thick microfibre or cotton rich/wool tights of 100D or over. In these I know my lower half is going to be toasty warm.
Do any other superheroes not wear pants under their tights? - Quora
What is the best denier of tights to wear under jeans in winter? - Quora
Is it OK to wear a dress without tights in winter? - Quora
Are tights better than stockings for winter? - Quora
What can I wear under my pants so you are not cold during winter? - Quora
Do any other superheroes not wear pants under their tights? - Quora
Are cargo pants good for winter collection? - Quora
Are cargo pants good for winter collection? - Quora
What should I wear under jeans to stay warm? - Quora