Moderate Temp Hunting Pants

[deerhunter14]

I am searching for a pair of hunting pants on a budget. I am a 20 year old who primarily whitetail hunts in Kansas. I hunt mostly out of tree stands. I am looking for a pair of pants that would be good for around 40-55 degrees. I have bibs that I wear when it gets any colder than that but they get pretty warm when it’s in the 40s or higher. I am just looking for something I can layer over a pair of jeans that is pretty warm and ideally has some ventilation. Looking at around the $100 mark if possible. Thanks a bunch guys. I appreciate any and all suggestions