Purchased this base layer because I ride a lot at night and was hoping for something that would provide warmth and yet feel breathable. This had the perfect combination of both and is also form-fitting and stylish enough to wear with everyday casual wear for a nice look. I liked this product so much I ended up buying a couple more in different colors which all look great.
This is the best base layer I've ever used. This keeps me warm and wicks away sweat. I regularly use it with just a single outer layer down to 32F, and I'm able to be comfortable throughout the ride. For reference, I tend to get very cold easily and have Raynolds syndrome. So keeping warm is a priority.