I bought these on a sale, but have had Pearl bike shorts before. These things are awesomely warm, the chamois is on the higher end of chamois I've sat, but the warmth and comfort here is key. I am totally wanting a second pair with the longer rainy season this year. They aren't water proof or really resistant, but the thermal capabilities and keeping your legs warm from riding hasn't at all made me feel cold or waterlogged. Would buy again.
The Pearl Izumi Men's Thermal Cycling Tights are excellent for cycling in weather in the 40's. They fit great and provide more than enough warmth on cold days. The only reason I didn't rate the product 5 stars is that the chamois is good, not great, but still comfortable.
No zipper at the ankle and the leggings always feel like they're sliding down. Lightweight and sufficiently warm. Make sure to size up, they run small