I have been buying Baleaf products lately and they have proven to be consistent and good. Last winter I wore these under my work jeans commuting and my daily 10 to 15 mile ride and they were fine. I am right between M and L for most clothing and M work perfectly for me. 32000 mostly good reviews.
https://www.amazon.com/gp/aw/d/B00CWVP9YC