Not sure what runner pants are but

When I first started I wore some baggier starter windbreaker pants over true cycling shorts. They work great at keeping your legs warm as they keep all of the wind out, and simple duct tape around the ankles (both) keeps thing in order. I did my first century* in them, it was sub 50 and rainy. *The Minnesota Iron man ride, held the last sunday in april. Looks like it will be the same weather for that this year.