I have a set of Craft and Giordana Knickers. First off, thermal knickers are fantastic, super comfortable for me from 40-65. Two things are great, they fit well and don't have any tendency to slide down your leg like full tights do since they end above your calf, and they don't get overheated the way tights can. The Giordana is more comfortable, but not crazy about the reflective piping on the side. The pad on the Craft is too short in the front to cover the manhood, so he not only gets cold, he also peeks out like a turtle coming out of his shell. I sewed a windstop and fleece layer to extend the pad, comfortable now but hard to recommend if you want them comfy out of the bag.
I don't recall where I got the Giordana's but I raced for them and they are local to Charlotte, NC so who knows. Here are the Crafts:
Another piece of gear I ride with a lot in 52-70 degree weather is these Rapha Thermal Bib Shorts I got on sale. Insanely comfortable, insanely expensive ($205 on sale, wut!!!), but honestly I'd say they are worth it. Had them two years and are pretty much my go to short for 3 seasons out of the year, and the pad is still super comfortable and everything about them is still in perfect shape even the logos on the sides are still perfect.
Here is what I got https://www.rapha.cc/us/en_US/shop/pro-team-thermal-bib-shorts-ii/product/THB05XXBPK
They have a knicker set that I am sure is good https://www.rapha.cc/us/en_US/shop/3-4-bib-shorts/product/BSL01XX
Sign up for the newsletter and get in on a sale but I really can't say enough good things about their stuff. It is ridiculously expensive, but the quality and durability is top notch and at this point in my life and with how much I ride, I'd rather buy one pair of great shorts for $200 than 3 pairs of mediocre ones. Ridden a lot of race team kits so I have gone through lots of mediocre shorts over the years, good for the first month or two but that's about it.